Best sources ranked · 2026
Best Tirzepatide Sources
74 US vendors carry Tirzepatide. Ordered below by the lab-rule score of each vendor’s certificate for Tirzepatide, then by the vendor’s published score; prices are per milligram. Dual GLP-1/GIP receptor agonist, the molecule behind the approved drugs Mounjaro and Zepbound. Frequently sold by research-peptide vendors under code names like 'TZ'.
- Vendors
- 74
Vendors
- With COAs
- 61
With COAs
- Best $/mg
- $0.48
Best $/mg
Looking for the top picks? Best Tirzepatide vendors, ranked by PSR score →
New to Tirzepatide? What is Tirzepatide? Our plain-English, research-use-only guide: what it is and how to spot a verified source.Tirzepatide research guide →
GLP-1 note: compounded/research Tirzepatide is not the FDA-approved branded product. Dosing errors with research-grade GLP-1s have caused hospitalizations. Research use only.
Every Tirzepatide source, by certificate
Ordered by the lab-rule score of each vendor's certificate for this product (out of 10), then by the vendor's published score, then alphabetically. How the lab rule scores a certificate. For the market-wide picture, see our 2026 study of peptide vendor testing.
Affiliate links: we may earn a commission if you buy. It never changes a score or rank.
9.5/103 base, +2 Accumark Labs tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.909certificate
Vendor score 8.17/10Strong
- Price per mg
- $3.67
- Best price
- $110.00 / 30mg
9.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.95certificate
Vendor score 8.09/10Strong
- Price per mg
- $2.07
- Best price
- $124.00 / 60mg
9.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.9certificate
Vendor score 8.02/10Strong
- Price per mg
- $1.83
- Best price
- $109.99 / 60mg
9.5/103 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.774certificate
Vendor score 7.98/10Strong
- Price per mg
- $1.33
- Best price
- $39.99 / 30mg
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.84certificate
Vendor score 7.94/10Strong
- Price per mg
- $4.33
- Best price
- $260.00 / 60mg
9.5/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.81certificate
Vendor score 7.80/10Strong
- Price per mg
- $1.93
- Best price
- $58.00 / 30mg
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.87certificate
Vendor score 7.75/10Strong
- Price per mg
- $1.00
- Best price
- $140.00 / 140mg
9.5/103 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.746certificate
Vendor score 7.73/10Strong
- Price per mg
- $3.83
- Best price
- $230.00 / 60mg
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.95certificate
Vendor score 7.67/10Strong
- Price per mg
- $6.67
- Best price
- $400.00 / 60mg
10VERATIS
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.77certificateVendor score 7.21/10Strong
- Price per mg
- $3.17
- Best price
- $95.00 / 30mg
Show 64 more carriers
9.5/103 base, +2 Accumark Labs tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.77certificate
Vendor score 7.12/10Strong
- Price per mg
- $4.96
- Best price
- $595.00 / 120mg
9.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.9certificate
Vendor score 6.88/10Fair
- Price per mg
- $8.50
- Best price
- $84.99 / 10mg
9.5/103 base, +2 Accumark Labs tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.81certificate
Vendor score 6.50/10Fair
- Price per mg
- $6.00
- Best price
- $179.99 / 30mg
14BulkGLP
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.84certificateVendor score 6.49/10Fair
- Price per mg
- $3.50
- Best price
- $140.00 / 40mg
9.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.72certificate
Vendor score 5.50/10Fair
- Price per mg
- $6.00
- Best price
- $59.99 / 10mg
9.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.67certificate
Vendor score 8.15/10Strong
- Price per mg
- $2.90
- Best price
- $58.00 / 20mg
9.0/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.78certificate
Vendor score 7.68/10Strong
- Price per mg
- $5.80
- Best price
- $289.99 / 50mg
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.89certificate
Vendor score 7.51/10Strong
- Price per mg
- $4.50
- Best price
- $449.99 / 100mg
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.94certificate
Vendor score 7.42/10Strong
- Price per mg
- $3.47
- Best price
- $104.00 / 30mg
20VoriLabs
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.85certificateVendor score 6.87/10Fair
- Price per mg
- $2.53
- Best price
- $151.99 / 60mg
9.0/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.76certificate
Vendor score 5.95/10Fair
- Price per mg
- $6.30
- Best price
- $126.00 / 20mg
8.5/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 purity 99.81certificate
Vendor score 8.01/10Strong
- Price per mg
- $3.60
- Best price
- $72.00 / 20mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.96certificate
Vendor score 7.90/10Strong
- Price per mg
- $2.00
- Best price
- $60.00 / 30mg
8.5/103 base, +2 Ethos Analytics Laboratory tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99certificate
Vendor score 7.88/10Strong
- Price per mg
- $3.63
- Best price
- $109.00 / 30mg
8.5/103 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.233certificate
Vendor score 7.45/10Strong
- Price per mg
- $2.50
- Best price
- $149.99 / 60mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.91certificate
Vendor score 7.45/10Strong
- Price per mg
- $2.57
- Best price
- $89.99 / 35mg
8.5/103 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.66certificate
Vendor score 7.43/10Strong
- Price per mg
- $5.97
- Best price
- $179.00 / 30mg
28Kyreon
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.8certificateVendor score 7.29/10Strong
- Price per mg
- $5.20
- Best price
- $52.00 / 10mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.983certificate
Vendor score 7.17/10Strong
- Price per mg
- $2.50
- Best price
- $300.00 / 120mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.91certificate
Vendor score 7.15/10Strong
- Price per mg
- $3.92
- Best price
- $234.95 / 60mg
8.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.9certificate
Vendor score 7.14/10Strong
- Price per mg
- $2.67
- Best price
- $159.99 / 60mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.75certificate
Vendor score 6.99/10Fair
- Price per mg
- $1.00
- Best price
- $99.99 / 100mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.83certificate
Vendor score 6.98/10Fair
- Price per mg
- $6.50
- Best price
- $64.99 / 10mg
8.5/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.799certificate
Vendor score 6.76/10Fair
- Price per mg
- $4.33
- Best price
- $259.99 / 60mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.95certificate
Vendor score 6.65/10Fair
- Price per mg
- $2.72
- Best price
- $326.00 / 120mg
36Peptyes
8.5/103 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.56certificateVendor score 6.55/10Fair
- Price per mg
- $3.00
- Best price
- $180.00 / 60mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.869certificate
Vendor score 6.47/10Fair
- Price per mg
- $5.67
- Best price
- $170.00 / 30mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.785certificate
Vendor score 6.32/10Fair
- Price per mg
- $1.17
- Best price
- $70.00 / 60mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.912certificate
Vendor score 6.14/10Fair
- Price per mg
- $4.67
- Best price
- $140.00 / 30mg
8.5/103 base, +2 Accumark Labs tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.993certificate
Vendor score 6.08/10Fair
- Price per mg
- $3.33
- Best price
- $199.99 / 60mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.89certificate
Vendor score 6.03/10Fair
- Price per mg
- $5.00
- Best price
- $100.00 / 20mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.77certificate
Vendor score 5.87/10Fair
- Price per mg
- $3.83
- Best price
- $115.00 / 30mg
8.5/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 purity 99.83certificate
Vendor score 5.60/10Fair
- Price per mg
- $4.17
- Best price
- $249.99 / 60mg
8.5/103 base, +2 ACS Laboratory tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.93certificate
Vendor score 5.45/10Weak
- Price per mg
- $9.00
- Best price
- $89.99 / 10mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.91certificate
Vendor score 5.01/10Weak
- Price per mg
- $7.50
- Best price
- $449.99 / 60mg
8.5/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.89certificate
Vendor score 4.58/10Weak
- Price per mg
- $8.25
- Best price
- $165.00 / 20mg
47GenX Bio
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.96certificateVendor score 4.45/10Weak
- Price per mg
- $4.30
- Best price
- $129.00 / 30mg
8.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.9certificate
Vendor score 3.23/10Poor
- Price per mg
- $3.29
- Best price
- $329.00 / 100mg
8.0/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, no purity figurecertificate
Vendor score 6.93/10Fair
- Price per mg
- $6.60
- Best price
- $396.00 / 60mg
8.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.68certificate
Vendor score 6.89/10Fair
- Price per mg
- $2.33
- Best price
- $70.00 / 30mg
8.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.42certificate
Vendor score 6.26/10Fair
- Price per mg
- $3.33
- Best price
- $99.99 / 30mg
8.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.42certificate
Vendor score 6.14/10Fair
- Price per mg
- $4.33
- Best price
- $129.99 / 30mg
8.0/103 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, 0 purity 99.609certificate
Vendor score 3.77/10Poor
- Price per mg
- $4.50
- Best price
- $269.99 / 60mg
7.5/103 base, +2 Krause Analytical LLC tier B-, +1.5 key, +0.5 endotoxin, +0.5 purity 99.9certificate
Vendor score 3.27/10Poor
- Price per mg
- $3.88
- Best price
- $232.50 / 60mg
7.0/103 base, +2 Ethos Analytics Laboratory tier B+, +1.5 key, +0.5 endotoxin, no purity figurecertificate
Vendor score 6.75/10Fair
- Price per mg
- $2.33
- Best price
- $279.99 / 120mg
7.0/103 base, +2 Krause Analytical LLC tier B-, +1.5 key, +0.5 purity 99.9certificate
Vendor score 2.13/10Poor
- Price per mg
- $0.48
- Best price
- $194.00 / 10 x 40mg pack
6.0/103 base, +2 MZ Biolabs tier A, +0.5 endotoxin, +0.5 purity 99.83certificate
Vendor score 5.62/10Fair
- Price per mg
- $3.85
- Best price
- $249.99 / 65mg
6.0/103 base, +2 Accurate Test Lab tier B-, +0.5 endotoxin, +0.5 purity 99.9certificate
Vendor score 4.70/10Weak
- Price per mg
- $6.63
- Best price
- $199.00 / 30mg
2.0/10PuriLab Analytical tier D: independence not established = 2.0 flatcertificate
Vendor score 6.34/10Fair
- Price per mg
- $3.67
- Best price
- $219.95 / 60mg
2.0/10SteriGenix Analytical tier D: independence not established = 2.0 flatcertificate
Vendor score 4.80/10Weak
- Price per mg
- $2.71
- Best price
- $244.00 / 90mg
2.0/10North American Diagnostics tier D: independence not established = 2.0 flatcertificate
Vendor score 3.95/10Poor
- Price per mg
- $3.33
- Best price
- $199.99 / 60mg
2.0/10Proof Point Analytical tier D: independence not established = 2.0 flatcertificate
Vendor score 3.92/10Poor
- Price per mg
- $2.48
- Best price
- $99.00 / 40mg
2.0/10Amino Metrics tier D: independence not established = 2.0 flatcertificate
Vendor score 3.76/10Poor
- Price per mg
- $1.67
- Best price
- $100.00 / 60mg
2.0/10Verum Analytics tier D: independence not established = 2.0 flatcertificate
Vendor score 3.70/10Poor
- Price per mg
- $8.50
- Best price
- $85.00 / 10mg
2.0/10Amino Metrics tier D: independence not established = 2.0 flatcertificate
Vendor score 3.68/10Poor
- Price per mg
- $0.83
- Best price
- $25.00 / 30mg
2.0/10Amino Metrics tier D: independence not established = 2.0 flatcertificate
Vendor score 3.63/10Poor
- Price per mg
- $2.50
- Best price
- $74.99 / 30mg
2.0/10self-issued by the vendor = 2.0 flatcertificate
Vendor score 3.25/10Poor
- Price per mg
- $4.00
- Best price
- $80.00 / 20mg
0.0/10no certificatecertificate
Vendor score 4.30/10Weak
NoneNo third-party COA was publicly available at audit time
- Price per mg
- $8.00
- Best price
- $79.99 / 10mg
0.0/10no certificatecertificate
Vendor score 3.38/10Poor
NoneNo third-party COA was publicly available at audit time
- Price per mg
- $25.00
- Best price
- $250.00 / 10mg
0.0/10no certificatecertificate
Vendor score 3.06/10Poor
NoneNo third-party COA was publicly available at audit time
- Price per mg
- $1.67
- Best price
- $200.00 / 120mg
0.0/10posted copy differs from the lab's copy = 0certificate
Vendor score 2.51/10Poor
- Price per mg
- $7.33
- Best price
- $219.90 / 30mg
0.0/10no certificatecertificate
Vendor score 2.46/10Poor
NoneNo third-party COA was publicly available at audit time
- Price per mg
- $1.50
- Best price
- $450.00 / 10 x 30mg pack
0.0/10no certificatecertificate
Vendor score 2.23/10Poor
NoneNo third-party COA was publicly available at audit time
- Price per mg
- $11.25
- Best price
- $56.24 / 5mg
0.0/10no certificatecertificate
Vendor score 1.63/10Poor
NoneNo third-party COA was publicly available at audit time
- Price per mg
- $3.45
- Best price
- $206.99 / 60mg
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Compare Tirzepatide vendors by PSR score
Every vendor we track that carries Tirzepatide (74 in all), ordered by PSR score, the published vendor score. For laboratory research use only: this compares vendors and their certificates, and says nothing about dosing or effects.
Price per mg is matched at 30mg, the size most of these vendors sell, so vials compare like for like. Prices as checked October 22, 2026 to November 6, 2026. Certificate status is for this product only. Affiliate status never affects scores or order (how we keep it separate). 24 vendors marked “Fails testing gate” do not meet our testing gate.
View:by PSR scoreby price per mg at 30mg
| Vendor | Sizes (mg) | Certificate and lab | Stock | ||||
|---|---|---|---|---|---|---|---|
| Zeptix Labs | 8.17Strong | $3.67$110.00 for 30mg | 10, 30 | Confirmed at lab (opens in new tab)Accumark LabsTier B+ | 99.909% | In stock | |
| Peptix USA | 8.15Strong | No 30mg$2.90/mg at 20mg | 20 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.67% | first seen | In stock |
| Southern Aminos | 8.09Strong | $2.64$79.20 for 30mg | 20, 30, 40, 60 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.95% | In stock | |
| Amino Club | 8.02Strong | $2.00$59.99 for 30mg | 30, 60 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.9% | In stock | |
| DAAVY Research | 8.01Strong | No 30mg$3.60/mg at 20mg | 20 | Confirmed at lab (opens in new tab)BioviridianTier A- | 99.81% | In stock | |
| Transition Biotech | 7.98Strong | $1.33$39.99 for 30mg | 30 | Confirmed at lab (opens in new tab)Kovera LabsTier A- | 99.774% | In stock | |
| Prime Peptides | 7.94Strong | $5.33$160.00 for 30mg | 10, 30, 60 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.84% | In stock | |
| Luv Aminos | 7.90Strong | $2.00$60.00 for 30mg | 30 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.96% | first seen | In stock |
| Pure Health Peptides | 7.88Strong | $3.63$109.00 for 30mg | 10, 15, 20, 30 | Confirmed at lab (opens in new tab)Ethos Analytics LaboratoryTier B+ | 99% | In stock | |
| Ameano Peptides | 7.80Strong | $1.93$58.00 for 30mg | 30 | Confirmed at lab (opens in new tab)Janoshik AnalyticalTier B+ | 99.81% | In stock | |
| S1Research | 7.75Strong | $2.10$63.00 for 30mg | 10, 30, 60, 140 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.87% | In stock | |
| LabFirst Peptides | 7.73Strong | $3.97$119.00 for 30mg | 5, 10, 15, 20, 30, 40, 50, 60 | Confirmed at lab (opens in new tab)Kovera LabsTier A- | 99.746% | first seen | In stock |
| Loti Labs | 7.68Strong | $7.33$219.99 for 30mg | 5, 10, 30, 50 | Confirmed at lab (opens in new tab)BioviridianTier A- | 99.78% | In stock | |
| Protide Health | 7.67Strong | $8.33$250.00 for 30mg | 10, 15, 30, 60 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.95% | In stock | |
| Felix Chemical Supply | 7.51Strong | $6.33$189.99 for 30mg | 10, 15, 30, 60, 100 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.89% | In stock | |
| Onyx Biolabs | 7.45Strong | $3.17$94.99 for 30mg | 15, 30, 60 | Confirmed at lab (opens in new tab)Kovera LabsTier A- | 99.233% | In stock | |
| Thrive Peptides | 7.45Strong | No 30mg$2.57/mg at 35mg | 35 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.91% | In stock | |
| Direct Peptides | 7.43Strong | $5.97$179.00 for 30mg | 10, 15, 30 | Confirmed at lab (opens in new tab)Horizon AnalyticalTier A- | 99.66% | In stock | |
| Honest Peptide | 7.42Strong | $3.47$104.00 for 30mg | 10, 30 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.94% | In stock | |
| Kyreon | 7.29Strong | No 30mg$5.20/mg at 10mg | 10 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.8% | first seen | Store not taking ordersObserved October 22, 2026 |
| VERATIS | 7.21Strong | $3.17$95.00 for 30mg | 30 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.77% | In stock | |
| Peptides Source | 7.17Strong | $4.17$125.00 for 30mg | 5, 10, 15, 20, 30, 40, 50, 60, 100, 120 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.983% | In stock | |
| Pacific Edge Labs | 7.15Strong | $4.83$144.95 for 30mg | 10, 30, 60 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.91% | In stock | |
| Prime Peptide Solutions | 7.14Strong | No 30mg$2.67/mg at 60mg | 10, 20, 60 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.9% | first seen | In stock |
| Paramount Peptides | 7.12Strong | $7.65$229.50 for 30mg | 10, 30, 40, 50, 60, 75, 100, 120 | Confirmed at lab (opens in new tab)Accumark LabsTier B+ | 99.77% | In stock | |
| StudzPeptides | 6.99Fair | $1.67$49.99 for 30mg | 10, 20, 30, 60, 100 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.75% | In stock | |
| Arctic Lab Supply | 6.98Fair | No 30mg$6.50/mg at 10mg | 10 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.83% | In stock | |
| NuuVive Peptides | 6.93Fair | $8.23$247.00 for 30mg | 10, 15, 20, 30, 50, 60 | Confirmed at lab (opens in new tab)Janoshik AnalyticalTier B+ | Not shown | first seen | In stock |
| NovaForge Labs | 6.89Fair | $2.33$70.00 for 30mg | 30 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.68% | In stock | |
| Rogue Compounds | 6.88Fair | No 30mg$8.50/mg at 10mg | 10 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.9% | In stock | |
| VoriLabs | 6.87Fair | $4.00$119.99 for 30mg | 10, 20, 30, 40, 60 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.85% | In stock | |
| Apollo Peptide Sciences | 6.76Fair | $5.03$150.99 for 30mg | 15, 20, 30, 60 | Confirmed at lab (opens in new tab)Janoshik AnalyticalTier B+ | 99.799% | In stock | |
| Modified AminosFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 6.75Fair | $4.00$119.99 for 30mg | 10, 30, 50, 60, 120 | Posted (opens in new tab)Ethos Analytics LaboratoryTier B+ | Not shown | first seen | In stock |
| Profound Aminos | 6.65Fair | $3.30$99.00 for 30mg | 5, 10, 15, 20, 30, 40, 60, 75, 95, 100, 120 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.95% | In stock | |
| Peptyes | 6.55Fair | $3.20$96.00 for 30mg | 10, 15, 30, 60 | Confirmed at lab (opens in new tab)Horizon AnalyticalTier A- | 99.56% | In stock | |
| FRO Peptides | 6.50Fair | $6.00$179.99 for 30mg | 10, 30 | Confirmed at lab (opens in new tab)Accumark LabsTier B+ | 99.81% | In stock | |
| BulkGLP | 6.49Fair | No 30mg$3.50/mg at 40mg | 40 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.84% | In stock | |
| Prime Lab Peptides | 6.47Fair | $5.67$170.00 for 30mg | 5, 10, 30 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.869% | In stock | |
| JD BioWorks | 6.34Fair | No 30mg$3.67/mg at 60mg | 10, 20, 40, 60 | Posted, source not established (opens in new tab)PuriLab AnalyticalTier D | 99.9% | In stock | |
| Hacker Peptides | 6.32Fair | $1.34$40.24 for 30mg | 20, 30, 60 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.785% | In stock | |
| NextSelf Labs | 6.26Fair | $3.33$99.99 for 30mg | 30 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.42% | In stock | |
| GhostLabz | 6.14Fair | $4.33$129.99 for 30mg | 10, 30 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.42% | In stock | |
| Research Peptides Lab | 6.14Fair | $4.67$140.00 for 30mg | 10, 15, 30, 45, 60 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.912% | In stock | |
| OMNI Peptides | 6.08Fair | No 30mg$3.33/mg at 60mg | 60 | Confirmed at lab (opens in new tab)Accumark LabsTier B+ | 99.993% | In stock | |
| Bionova Peptides | 6.03Fair | No 30mg$5.00/mg at 20mg | 20 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.89% | In stock | |
| NextGen Peps | 5.95Fair | No 30mg$6.30/mg at 20mg | 10, 20 | Confirmed at lab (opens in new tab)BioviridianTier A- | 99.76% | Out of stockOut of stock on 3 November 2026 (GLP-TZ, both sizes; product page shows Out of stock with a Notify me form); it was in stock at our 20 October 2026 check. Still carried under the coverage rule. Sold under code name 'GLP-TZ'; actual identity confirmed as Tirzepatide in COA filename. Purity reported 99.25%. | |
| AminoWave Labs | 5.87Fair | $3.83$115.00 for 30mg | 10, 30 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.77% | In stock | |
| Amino AmigosFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 5.62Fair | No 30mg$3.85/mg at 65mg | 10, 20, 65 | Posted (opens in new tab)MZ BiolabsTier A | 99.83% | In stock | |
| Peptide Pro | 5.60Fair | $5.67$169.99 for 30mg | 10, 15, 30, 60 | Confirmed at lab (opens in new tab)BioviridianTier A- | 99.83% | In stock | |
| Vortex Research | 5.50Fair | No 30mg$6.00/mg at 10mg | 10 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.72% | In stock | |
| Azyrion Labs | 5.45Weak | No 30mg$9.00/mg at 10mg | 10 | Confirmed at lab (opens in new tab)ACS LaboratoryTier A | 99.93% | In stock | |
| Peptide WarehouseFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 5.01Weak | $10.00$299.99 for 30mg | 5, 10, 30, 60 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.91% | In stock | |
| Redline Bio LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 4.80Weak | $3.93$118.00 for 30mg | 10, 15, 20, 30, 40, 50, 60, 90 | Posted, source not established (opens in new tab)SteriGenix AnalyticalTier D | Not shown | In stock | |
| Vyal LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 4.70Weak | $6.63$199.00 for 30mg | 10, 15, 30 | Posted (opens in new tab)Accurate Test LabTier B- | 99.9% | first seen | In stock |
| Delix Labs | 4.58Weak | No 30mg$8.25/mg at 20mg | 10, 20 | Confirmed at lab (opens in new tab)Janoshik AnalyticalTier B+ | 99.89% | In stock | |
| GenX BioFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 4.45Weak | $4.30$129.00 for 30mg | 10, 20, 30 | Confirmed at lab (opens in new tab)Freedom Diagnostics TestingTier A | 99.96% | In stock | |
| Ageless PeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 4.30Weak | No 30mg$8.00/mg at 10mg | 10 | NoneNo certificate for this product was publicly available at our check | Not shown | No certificate | In stock |
| PSPeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.95Poor | $3.83$114.99 for 30mg | 10, 15, 20, 30, 40, 50, 60 | Posted, source not established (opens in new tab)North American DiagnosticsTier D | Not shown | first seen | In stock |
| Prism LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.92Poor | No 30mg$2.48/mg at 40mg | 20, 40 | Posted, source not established (opens in new tab)Proof Point AnalyticalTier D | Not shown | first seen | In stock |
| Peptide LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.77Poor | $5.67$169.99 for 30mg | 10, 20, 30, 40, 50, 60 | Confirmed at lab (opens in new tab)Kovera LabsTier A- | 99.609% | first seen | Out of stockOut of stock; no COA link. |
| Peptide.ExpressFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.76Poor | $2.17$65.00 for 30mg | 20, 30, 60 | Posted, source not established (opens in new tab)Amino MetricsTier D | Not shown | In stock | |
| BioInfinityFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.70Poor | No 30mg$8.50/mg at 10mg | 5, 10 | Posted, source not established (opens in new tab)Verum AnalyticsTier D | Not shown | In stock | |
| Lotus PeptideFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.68Poor | $0.83$25.00 for 30mg | 10, 20, 30 | Posted, source not established (opens in new tab)Amino MetricsTier D | Not shown | In stock | |
| Pexo LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.63Poor | $2.50$74.99 for 30mg | 20, 30 | Posted, source not established (opens in new tab)Amino MetricsTier D | Not shown | In stock | |
| Spartan PeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.38Poor | No 30mg$25.00/mg at 10mg | 10 | NoneNo certificate for this product was publicly available at our check | Not shown | No certificate | In stock |
| Nextday PeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.27Poor | $4.25$127.50 for 30mg | 10, 20, 30, 40, 60 | Posted (opens in new tab)Krause Analytical LLCTier B- | 99.9% | In stock | |
| RapidCore BioFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.25Poor | No 30mg$4.00/mg at 20mg | 20 | Posted, source not established (opens in new tab) | Not shown | In stock | |
| Drexa LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.23Poor | $4.67$140.00 for 30mg | 15, 30, 60, 100 | Confirmed at lab (opens in new tab)ILS LaboratoriesTier B+ | 99.9% | In stock | |
| Snowman ResearchFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 3.06Poor | $2.50$75.00 for 30mg | 5, 10, 15, 20, 30, 40, 60, 120 | NoneNo certificate for this product was publicly available at our check | Not shown | No certificate | In stock |
| Stack ResearchFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 2.51Poor | $7.33$219.90 for 30mg | 10, 30 | Posted, differs from lab copy (opens in new tab)Accumark LabsTier B+ | 99.81% | In stock | |
| Peptide Warehouse USFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 2.46Poor | $1.50$450.00 for 10 x 30mg pack | 10, 20, 30 | NoneNo certificate for this product was publicly available at our check | Not shown | No certificate | In stock |
| PepBioticsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 2.23Poor | No 30mg$11.25/mg at 5mg | 5 | NoneNo certificate for this product was publicly available at our check | Not shown | No certificate | In stock |
| Welon Peptide SolutionsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 2.13Poor | $0.54$162.00 for 10 x 30mg pack | 5, 10, 15, 20, 30, 40, 50, 60, 80, 100 | Posted (opens in new tab)Krause Analytical LLCTier B- | 99.9% | In stock | |
| Medura PeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | 1.63Poor | $4.65$139.49 for 30mg | 10, 30, 60 | NoneNo certificate for this product was publicly available at our check | Not shown | No certificate | In stock |
Tirzepatide vendors by price per mg at 30mg
Lowest first; vendors that do not sell 30mg follow, by their own lowest price per mg. Cheapest is not the same as best: check the certificate and the PSR score beside each price. Back to the PSR score order.
| Vendor | $/mg at 30mg | PSR score | Certificate | Stock |
|---|---|---|---|---|
| Welon Peptide SolutionsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $0.54$162.00 for 10 x 30mg pack | 2.13Poor | Posted (opens in new tab) | In stock |
| Lotus PeptideFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $0.83$25.00 for 30mg | 3.68Poor | Posted, source not established (opens in new tab) | In stock |
| Transition Biotech | $1.33$39.99 for 30mg | 7.98Strong | Confirmed at lab (opens in new tab) | In stock |
| Hacker Peptides | $1.34$40.24 for 30mg | 6.32Fair | Confirmed at lab (opens in new tab) | In stock |
| Peptide Warehouse USFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $1.50$450.00 for 10 x 30mg pack | 2.46Poor | NoneNo certificate for this product was publicly available at our check | In stock |
| StudzPeptides | $1.67$49.99 for 30mg | 6.99Fair | Confirmed at lab (opens in new tab) | In stock |
| Ameano Peptides | $1.93$58.00 for 30mg | 7.80Strong | Confirmed at lab (opens in new tab) | In stock |
| Amino Club | $2.00$59.99 for 30mg | 8.02Strong | Confirmed at lab (opens in new tab) | In stock |
| Luv Aminos | $2.00$60.00 for 30mg | 7.90Strong | Confirmed at lab (opens in new tab) | In stock |
| S1Research | $2.10$63.00 for 30mg | 7.75Strong | Confirmed at lab (opens in new tab) | In stock |
| Peptide.ExpressFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $2.17$65.00 for 30mg | 3.76Poor | Posted, source not established (opens in new tab) | In stock |
| NovaForge Labs | $2.33$70.00 for 30mg | 6.89Fair | Confirmed at lab (opens in new tab) | In stock |
| Pexo LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $2.50$74.99 for 30mg | 3.63Poor | Posted, source not established (opens in new tab) | In stock |
| Snowman ResearchFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $2.50$75.00 for 30mg | 3.06Poor | NoneNo certificate for this product was publicly available at our check | In stock |
| Southern Aminos | $2.64$79.20 for 30mg | 8.09Strong | Confirmed at lab (opens in new tab) | In stock |
| Onyx Biolabs | $3.17$94.99 for 30mg | 7.45Strong | Confirmed at lab (opens in new tab) | In stock |
| VERATIS | $3.17$95.00 for 30mg | 7.21Strong | Confirmed at lab (opens in new tab) | In stock |
| Peptyes | $3.20$96.00 for 30mg | 6.55Fair | Confirmed at lab (opens in new tab) | In stock |
| Profound Aminos | $3.30$99.00 for 30mg | 6.65Fair | Confirmed at lab (opens in new tab) | In stock |
| NextSelf Labs | $3.33$99.99 for 30mg | 6.26Fair | Confirmed at lab (opens in new tab) | In stock |
| Honest Peptide | $3.47$104.00 for 30mg | 7.42Strong | Confirmed at lab (opens in new tab) | In stock |
| Pure Health Peptides | $3.63$109.00 for 30mg | 7.88Strong | Confirmed at lab (opens in new tab) | In stock |
| Zeptix Labs | $3.67$110.00 for 30mg | 8.17Strong | Confirmed at lab (opens in new tab) | In stock |
| PSPeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $3.83$114.99 for 30mg | 3.95Poor | Posted, source not established (opens in new tab) | In stock |
| AminoWave Labs | $3.83$115.00 for 30mg | 5.87Fair | Confirmed at lab (opens in new tab) | In stock |
| Redline Bio LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $3.93$118.00 for 30mg | 4.80Weak | Posted, source not established (opens in new tab) | In stock |
| LabFirst Peptides | $3.97$119.00 for 30mg | 7.73Strong | Confirmed at lab (opens in new tab) | In stock |
| Modified AminosFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $4.00$119.99 for 30mg | 6.75Fair | Posted (opens in new tab) | In stock |
| VoriLabs | $4.00$119.99 for 30mg | 6.87Fair | Confirmed at lab (opens in new tab) | In stock |
| Peptides Source | $4.17$125.00 for 30mg | 7.17Strong | Confirmed at lab (opens in new tab) | In stock |
| Nextday PeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $4.25$127.50 for 30mg | 3.27Poor | Posted (opens in new tab) | In stock |
| GenX BioFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $4.30$129.00 for 30mg | 4.45Weak | Confirmed at lab (opens in new tab) | In stock |
| GhostLabz | $4.33$129.99 for 30mg | 6.14Fair | Confirmed at lab (opens in new tab) | In stock |
| Medura PeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $4.65$139.49 for 30mg | 1.63Poor | NoneNo certificate for this product was publicly available at our check | In stock |
| Drexa LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $4.67$140.00 for 30mg | 3.23Poor | Confirmed at lab (opens in new tab) | In stock |
| Research Peptides Lab | $4.67$140.00 for 30mg | 6.14Fair | Confirmed at lab (opens in new tab) | In stock |
| Pacific Edge Labs | $4.83$144.95 for 30mg | 7.15Strong | Confirmed at lab (opens in new tab) | In stock |
| Apollo Peptide Sciences | $5.03$150.99 for 30mg | 6.76Fair | Confirmed at lab (opens in new tab) | In stock |
| Prime Peptides | $5.33$160.00 for 30mg | 7.94Strong | Confirmed at lab (opens in new tab) | In stock |
| Peptide LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $5.67$169.99 for 30mg | 3.77Poor | Confirmed at lab (opens in new tab) | Out of stock |
| Peptide Pro | $5.67$169.99 for 30mg | 5.60Fair | Confirmed at lab (opens in new tab) | In stock |
| Prime Lab Peptides | $5.67$170.00 for 30mg | 6.47Fair | Confirmed at lab (opens in new tab) | In stock |
| Direct Peptides | $5.97$179.00 for 30mg | 7.43Strong | Confirmed at lab (opens in new tab) | In stock |
| FRO Peptides | $6.00$179.99 for 30mg | 6.50Fair | Confirmed at lab (opens in new tab) | In stock |
| Felix Chemical Supply | $6.33$189.99 for 30mg | 7.51Strong | Confirmed at lab (opens in new tab) | In stock |
| Vyal LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $6.63$199.00 for 30mg | 4.70Weak | Posted (opens in new tab) | In stock |
| Stack ResearchFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $7.33$219.90 for 30mg | 2.51Poor | Posted, differs from lab copy (opens in new tab) | In stock |
| Loti Labs | $7.33$219.99 for 30mg | 7.68Strong | Confirmed at lab (opens in new tab) | In stock |
| Paramount Peptides | $7.65$229.50 for 30mg | 7.12Strong | Confirmed at lab (opens in new tab) | In stock |
| NuuVive Peptides | $8.23$247.00 for 30mg | 6.93Fair | Confirmed at lab (opens in new tab) | In stock |
| Protide Health | $8.33$250.00 for 30mg | 7.67Strong | Confirmed at lab (opens in new tab) | In stock |
| Peptide WarehouseFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | $10.00$299.99 for 30mg | 5.01Weak | Confirmed at lab (opens in new tab) | In stock |
| Prism LabsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | No 30mg$2.48/mg at 40mg | 3.92Poor | Posted, source not established (opens in new tab) | In stock |
| Thrive Peptides | No 30mg$2.57/mg at 35mg | 7.45Strong | Confirmed at lab (opens in new tab) | In stock |
| Prime Peptide Solutions | No 30mg$2.67/mg at 60mg | 7.14Strong | Confirmed at lab (opens in new tab) | In stock |
| Peptix USA | No 30mg$2.90/mg at 20mg | 8.15Strong | Confirmed at lab (opens in new tab) | In stock |
| OMNI Peptides | No 30mg$3.33/mg at 60mg | 6.08Fair | Confirmed at lab (opens in new tab) | In stock |
| BulkGLP | No 30mg$3.50/mg at 40mg | 6.49Fair | Confirmed at lab (opens in new tab) | In stock |
| DAAVY Research | No 30mg$3.60/mg at 20mg | 8.01Strong | Confirmed at lab (opens in new tab) | In stock |
| JD BioWorks | No 30mg$3.67/mg at 60mg | 6.34Fair | Posted, source not established (opens in new tab) | In stock |
| Amino AmigosFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | No 30mg$3.85/mg at 65mg | 5.62Fair | Posted (opens in new tab) | In stock |
| RapidCore BioFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | No 30mg$4.00/mg at 20mg | 3.25Poor | Posted, source not established (opens in new tab) | In stock |
| Bionova Peptides | No 30mg$5.00/mg at 20mg | 6.03Fair | Confirmed at lab (opens in new tab) | In stock |
| Kyreon | No 30mg$5.20/mg at 10mg | 7.29Strong | Confirmed at lab (opens in new tab) | Store not taking orders |
| Vortex Research | No 30mg$6.00/mg at 10mg | 5.50Fair | Confirmed at lab (opens in new tab) | In stock |
| NextGen Peps | No 30mg$6.30/mg at 20mg | 5.95Fair | Confirmed at lab (opens in new tab) | Out of stock |
| Arctic Lab Supply | No 30mg$6.50/mg at 10mg | 6.98Fair | Confirmed at lab (opens in new tab) | In stock |
| Ageless PeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | No 30mg$8.00/mg at 10mg | 4.30Weak | NoneNo certificate for this product was publicly available at our check | In stock |
| Delix Labs | No 30mg$8.25/mg at 20mg | 4.58Weak | Confirmed at lab (opens in new tab) | In stock |
| Rogue Compounds | No 30mg$8.50/mg at 10mg | 6.88Fair | Confirmed at lab (opens in new tab) | In stock |
| BioInfinityFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | No 30mg$8.50/mg at 10mg | 3.70Poor | Posted, source not established (opens in new tab) | In stock |
| Azyrion Labs | No 30mg$9.00/mg at 10mg | 5.45Weak | Confirmed at lab (opens in new tab) | In stock |
| PepBioticsFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | No 30mg$11.25/mg at 5mg | 2.23Poor | NoneNo certificate for this product was publicly available at our check | In stock |
| Spartan PeptidesFails testing gateThird-party testing not established. The gate records what we could verify; it is not a finding of a quality or safety problem. | No 30mg$25.00/mg at 10mg | 3.38Poor | NoneNo certificate for this product was publicly available at our check | In stock |
Affiliate partners carrying Tirzepatide
Affiliate links: we may earn a commission if you buy. It never changes a score or rank.
Highest-placed partner
Zeptix Labs9.5/10 certificate
The highest-placed affiliate partner in the table above for Tirzepatide: certificate 9.5/10, vendor score 8.17/10.
Zeptix Labs discount code →Largest partner reader code
Arctic Lab Supply25% off
The largest reader discount among our affiliate partners carrying Tirzepatide: 25% off with code PSRINFO.
Arctic Lab Supply discount code →Tirzepatide: Frequently Asked Questions
Who has the best Tirzepatide?
In our 2026 audit, Zeptix Labs is listed first for Tirzepatide: its certificate for Tirzepatide scores 9.5/10 on our lab rule, and its published vendor score is 8.17/10. The full ordered table is on this page.
What is the cheapest Tirzepatide per mg?
The lowest recorded price per milligram for Tirzepatide in our audit is the "Best $/mg" figure at the top of this page, and every carrier's price per mg is in the table. Cheapest is not the same as best: the table is ordered by certificate and vendor score, not by price.
How do you rate Tirzepatide vendors?
Ordered by the lab-rule score of each vendor's certificate for this product (out of 10), then by the vendor's published score, then alphabetically. The certificate score is the same lab rule that builds each vendor's lab sub-score, applied to that vendor's certificate for Tirzepatide; the vendor score is the published overall score. Price per mg is shown but does not change the order. See our methodology for the lab rule.