Zeptix Labs Review
Scored 8.17/10 on the published Peptide Source Review formula: lab credibility, shipping, pricing, operating history, and transparency.
- COAs on file
- 19
COAs on file
- Confirmed at the lab
- 18
Confirmed at the lab
- Products
- 19
Products
- Labs
- 2
Labs
8.17/ 10
Last scored
No testing cap
- Lab credibility and recency55%8.2 (show how this was scored)
- Shipping and refund20%10.0 (show how this was scored)
- Pricing15%8.8 (show how this was scored)
- Operating history5%1.3 (show how this was scored)
- Business transparency5%5.5 (show how this was scored)
Weights are fixed for every vendor. Select a row to see how it was scored.
Is Zeptix Labs legit?
Zeptix Labs scores 8.17 out of 10 (Strong, #1 of 100) as of November 3, 2026 and passes our testing gate: all 18 products we score carry a certificate, 18 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is shipping and refunds (10.0/10); its weakest is operating history (1.3/10), with about six months of records. We also record that some of its certificates were issued to another business.
On lab evidence, the heaviest-weighted factor, Zeptix Labs has independently verified third-party COAs, with COA work on record from Accumark Labs, Freedom Diagnostics Testing. Its lowest price per milligram in our data is on GHK-Cu (see the table below).
How this score was calculated
Every point below follows the published tables in our methodology, with the policy wording we scored and a link to where we read it. Evidence last checked October 22, 2026. Lab credibility is worked product by product from the certificates on file.
Lab credibility8.2/10
Each carried product (lab supplies excluded) is scored from the certificate on file for it, on the published lab rubric: 3 for a published certificate, then points for the laboratory, the verification key, the tests on the certificate and its purity, held to 0 to 10. A certificate that is self-issued, names no laboratory, or comes from a laboratory whose independence is not established scores a flat 2.0; a product with no certificate, a certificate the laboratory’s own record fails, or a posted copy that differs materially from the laboratory’s copy scores 0. Calculated on , the day this page was built; the date each certificate was tested is shown on its row.
- Retatrutide9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-07
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.88% (99.7% or higher)
- Tesamorelin9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-07
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.22% (99.0% up to but not including 99.7%)
- GHK-Cu9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-11
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.86% (99.7% or higher)
- BPC-1579.0
Certificate from Accumark Labs, tier B+ · tested 2026-10-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.699% (99.0% up to but not including 99.7%)
- MOTS-c9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-07
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.32% (99.0% up to but not including 99.7%)
- Tirzepatide9.5
Certificate from Accumark Labs, tier B+ · tested 2026-10-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.909% (99.7% or higher)
- Semaglutide8.0
Certificate from Accumark Labs, tier B+ · tested 2026-03-02
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.56% (99.0% up to but not including 99.7%)
- TB-5008.0
Certificate from Accumark Labs, tier B+ · tested 2026-02-24
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.1% (99.0% up to but not including 99.7%)
- KLOW9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-11
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.58% (99.0% up to but not including 99.7%)
- GLOW8.0
Certificate from Accumark Labs, tier B+ · tested 2026-03-02
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.61% (99.0% up to but not including 99.7%)
- Ipamorelin8.0
Certificate from Accumark Labs, tier B+ · tested 2026-03-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.453% (99.0% up to but not including 99.7%)
- Melanotan-28.0
Certificate from Accumark Labs, tier B+ · tested 2026-03-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.075% (99.0% up to but not including 99.7%)
Certificate from Accumark Labs, tier B+ · tested 2026-02-24
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.08% (99.0% up to but not including 99.7%)
Certificate from Accumark Labs, tier B+ · tested 2026-08-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.72% (99.7% or higher)
- Cagrilintide9.0
Certificate from Accumark Labs, tier B+ · tested 2026-09-09
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.684% (99.0% up to but not including 99.7%)
- Epitalon8.0
Certificate from Accumark Labs, tier B+ · tested 2026-03-30
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.44% (99.0% up to but not including 99.7%)
- PT-1418.5
Certificate from Accumark Labs, tier B+ · tested 2026-05-04
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.92% (99.7% or higher)
- Sermorelin8.0
Certificate from Accumark Labs, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Accumark Labs)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.08% (99.0% up to but not including 99.7%)
Mean of 18 products: 154.5 ÷ 18 = 8.583.
- −0.20CLAIM Claims the certificates do not support (cap −0.3): Every page 'Third-party tested U.S. accredited labs' while the certificates are Accumark ('ISO 17025 Pending') and Freedom Diagnostics (-0.1); '99%+ purity, COA on every batch' / '99%+ Verified Purity' vs posted Accumark certificates CJC/Ipamorelin M6AM-H57N (CJC-1295 98.43%) and GLOW 7AH3-UN8P (one component 98.71%) (-0.1; restated 2026-10-23 because the BPC-157 certificate first cited, EJS6-BXRG 98.2%, is no longer posted)
- −0.20SUPPLIER Certificates ordered by a supplier or another client (cap −0.5): six Accumark reports issued to Zeptix Labs on 2026-10-22 repeat analyses first completed for other clients: ipamorelin lot 1107, MT-2 lot 1128, PT-141 lot 1250, epitalon lot 1602 and sermorelin lot 1800, first completed for CnC in July 2026 and then re-issued to Fro Peptides on 2026-09-07; and BPC-157/TB-500 lot 1552890, first completed for Fro Peptides on 2026-09-07
8.583 − 0.400 = 8.183, rounded to 0.1: 8.2/10.
Testing gate: 18 of 18 products have a certificate from a directory laboratory (not tier D, not self-issued) with the key confirmed at the laboratory. That is at least half, so the vendor counts as third-party tested and no cap applies.
Shipping and refunds10.0/10
- +3
Returns and refunds
Unopened returns are refunded when they are requested within 30 days. If your order arrived sealed and you have not opened it, contact us within 30 days of delivery (as shown by carrier tracking) and we will refund the returned product to your original payment method.
- +2
Lost or damaged parcels
Any damaged parcel is reshipped for free. ... Any lost parcel is reshipped for free.
- +1.5
Dispatch time
Orders placed before 6:00 PM ET (3:00 PM PT) on a business day typically ship the same day.
- +1
- +1.5
Payment you can dispute
We accept debit and credit cards only. Payment is taken at checkout, and your order is not complete until the card payment is confirmed.
- +1
Shipping rates published
Standard shipping is a flat [price] per order. Shipping is free on orders of [price] or more
Total +10: 10.0/10.
Pricing8.8/10
We compared Zeptix Labs’s current single-vial prices on 18 products, each matched to the same product and milligrams per vial, with the median price of the other vendors. Its typical price (the median ratio across those products) is 26% below the market median (ratio 0.74), which the published scale maps to 8.8/10. For 8 sizes, the lowest total a buyer can pay without a code buys more than one vial under a standing offer, so their prices are divided by all the milligrams received (rule E1). checked
Operating history1.3/10
Counted from April 22, 2026, the earliest dated evidence of this business operating: 6 months as of October 22, 2026, which the published table maps to 1.3/10.
Domain zeptixlabs.com registered 2026-04-22 (RDAP). Florida Sunbiz: ZEPTIX LABS LLC (L26000227116) filed 2026-04-22, the same day. An unrelated-looking ZEPTIX LLC (L24000398955, inactive) exists but nothing ties it to this store. No Wayback captures.
- 2026-04-22 State registry: ZEPTIX LABS LLC L26000227116 filed 2026-04-22 search.sunbiz.org (opens in new tab)
- 2026-04-22 Domain registration: registration rdap.verisign.com (opens in new tab)
Transparency5.5/10
- +2
Legal entity named
Zeptix Labs LLC (policy headers and footer)
- +1
Business address
7901 4th St N STE 300, St. Petersburg, FL 33702 (registered-agent address; addresses.json virtual)
- 0
- 0
- +1
Dated terms with a governing law
Last updated: October 2026; "governed by and construed in accordance with the laws of the State of Florida"
- +1.5
Testing lab named, certificates published
Accumark and Freedom Diagnostics certificates published
Total +5.5: 5.5/10.
Reader discount
Save 20% at Zeptix Labs
- Rated 8.17/10 · Strong
- 18 COAs confirmed at the issuing lab
- Best value: GHK-Cu at $0.40/mg
Affiliate link: we may earn a commission if you buy. It never affects the score or rank.
Current Zeptix Labs offers
50% Off via BOGO (Buy One Get One Free)
Standing buy-one-get-one-free on select vials (branded GLP-3 R, GLP-2 T, KLOW, Tesamorelin, GHK-Cu, MOTS-c, BPC-157, GLP-1 S, etc.): most vials ship with a second free, i.e. 50% off per vial at the listed price. Confirmed live on storefront via BOGO badges (e.g. GLP-3 R (Retatrutide) From $89.99 $44.99 each, KLOW From $129.99 $64.99 each, Tesamorelin From $99.99 $49.99 each, GHK-Cu From $39.99 $19.99 each, BPC-157 From $59.99 $29.99 each, MOTS-c From $59.99 $29.99 each, GLP-1 S (Semaglutide) From $39.99 $19.99 each). Reader code PSR20 stacks on top (60% off per vial combined).
WELCOME15: 15% Off Your First Order (Spin & Win)
Zeptix Labs homepage Spin & Win welcome popup: entering an email unlocks Your exclusive 15% welcome discount is ready. Use the code below at checkout. Code WELCOME15 is auto-applied to the cart on unlock; 15% off a first order.
PSR20: 20% Off (Reader Exclusive, Stacks with BOGO)
Reader code PSR20 for 20% off, issued to us by Zeptix Labs by email on 2026-09-11 and intended to stack with the buy-one-get-one offer. The code is not displayed on the vendor's site.
Audit history and why the rating changed
We re-audit vendors against their live COAs and site. Here is what most recently moved this rating, and why.
See the full score history and chart
- Most recent audit · 8.19to8.17
Market medians updated on 3 November 2026 after the Zeptix Labs tirzepatide buy-one-get-one offer ended: pricing 8.9 to 8.8.
- Audit · 8.17to8.19
Pricing recomputed on 31 October 2026 under rule E1 (standing offers): the MOTS-c 10mg buy-one-get-one offer, live since 1 October 2026 and re-checked on 31 October, passed 30 days standing and now counts at $29.99 a vial. Pricing 8.8 to 8.9.
- Audit · 8.19to8.17
Market medians updated after S1Research was added pricing 8.9 to 8.8.
Earlier audits (12)
- Audit · 8.17to8.19
Pricing recomputed on 27 October 2026: listings added for a newly reviewed vendor (Peptide Pro) moved the market median for the same products pricing 8.8 to 8.9.
- Audit · 8.16to8.17
Pricing recomputed on 24 October 2026: listings added for newly reviewed vendors moved the market median for the same products: pricing 8.7 to 8.8.
- Audit · 8.17to8.16
Prices re-checked on 23 October 2026 under rule E (standing prices only): prices taken from a time-limited sale were replaced with the vendor's standing price, current prices were re-read, and other vendors' price changes moved the market medians pricing 8.8 to 8.7.
- Audit · 7.89to8.17
Pricing recomputed on 23 October 2026 under the revised rule E1 (standing offers). Zeptix Labs' buy-one-get-one-free offer needs no code, has no end date and has been live since early September 2026, and a single vial costs the same as the pair, so the lowest total a buyer can pay for 8 sizes buys two vials and their price per mg counts both. Two more sizes on the offer count once they have been live 30 days. pricing 6.9 to 8.8.
- Audit · 7.90to7.89
Pricing recomputed on 23 October 2026 from current listings with the published rule (section E), after listings added or updated since 22 October, including a newly reviewed vendor's, moved the market median for the same products: pricing 7.0 to 6.9.
- Audit · 7.00to7.90
Policies re-read on 23 October 2026 after the vendor reported changes, and confirmed on the live site that day: unopened returns within 30 days of delivery are refunded, lost and damaged parcels are reshipped free, and payment is by debit or credit card at checkout. shipping and refunds 5.5 to 10.0.
- Audit · 6.18to7.00
Certificate library re-read on 23 October 2026 at the vendor's request: 24 certificates were confirmed at the issuing laboratories. New certificates now cover ipamorelin, MT-2, the BPC-157 and TB-500 blend, and four newly listed products, and add endotoxin and sterility screens for BPC-157 and tirzepatide. Six of the new certificates are analyses first issued to another vendor, recorded under the published supplier adjustment. Lab 6.7 to 8.2.
- Audit · 6.01to6.18
Lab score recalculated on 22 October 2026 under the published core-product rule (A1b): a missing certificate on one of the 15 most widely carried products still counts fully, while on any other product it now counts at half weight, so a broad catalogue is not penalised as much for its breadth. Lab 6.4 to 6.7.
- Audit · 6.85to6.01
Re-scored on 22 October 2026 under our published rubric for shipping, pricing, operating history and transparency, applied to every vendor the same day: prices re-read from the vendor's site and matched by milligrams per vial, operating history from the earliest dated evidence of the business, and policies scored item by item. shipping and refunds 8.5 to 5.5, pricing 8.0 to 7.0, operating history 2.0 to 1.3, transparency 6.5 to 5.5.
- Audit · 6.74to6.85
Lab score recalculated on 22 October 2026 under the uniform published rubric applied to every vendor: every listed product was rescored on the same fixed certificate points, with fixed deductions for site statements about testing that the certificates do not bear out. Lab 6.2 to 6.4.
- Audit · 7.89to6.74
Lab evidence re-checked on 20 October 2026 under our coverage rule, which counts a listed product with no published certificate as zero in the lab average. Certificates cover 11 of the 14 products we list that the vendor offers for sale. Lab 8.3 to 6.2.
- Audit · 7.73to7.89
Four certificates dated 2026-10-07 verified first-hand at Freedom Diagnostics for GLP-3 R 10mg and 30mg, Tesamorelin 10mg and MOTS-c 10mg, each adding heavy metals by ICP-MS and a fentanyl screen. MOTS-c and Tesamorelin also moved from Accumark to Freedom Diagnostics. The vendor describes these as nine analyses; seven are present, with sterility, conformity and pH absent.
Editor’s notes
Zeptix Labs LLC was registered in Florida on 22 April 2026, the day its domain was registered, and lists a suite address in St. Petersburg, Florida that is a registered-agent address rather than operating premises. Its certificates come from Accumark Labs and Freedom Diagnostics Testing. On 23 October 2026, at the vendor's request, we re-read its certificate library: it shows 25 entries across 19 compounds, which are 24 distinct documents because the semaglutide 10mg entry links the 5mg certificate. All 24 were confirmed at the issuing laboratory, each naming Zeptix Labs as the client. We list 18 Zeptix peptides plus bacteriostatic water, including cagrilintide, epitalon, PT-141 and sermorelin, which the vendor's shop showed as sold out on 22 October 2026; each of the 18 has a certificate confirmed at the laboratory. Eight peptides and the water have endotoxin results with a PCR microbial screen. Six of the Accumark reports added in October 2026 (ipamorelin, MT-2, PT-141, epitalon, sermorelin and the BPC-157/TB-500 blend) repeat analyses Accumark first completed for other clients, re-issued in Zeptix's name on 22 October 2026: five first for CnC, the client on Stack Research's reports, in July 2026 and then for FRO Peptides on 7 September 2026, and the blend first for FRO Peptides. They document the supplier's lots rather than samples Zeptix sent from its own stock. Accumark analyses first completed for Zeptix in May 2026 (lots 005, 1026, 1035 and 1400) were later re-issued to CnC and FRO Peptides. The matching reports are not independent tests. In October 2026 Tesamorelin and MOTS-c moved to Freedom Diagnostics certificates. At our first review in August 2026 we raised three questions: a flat 100.0% purity figure on a retatrutide certificate, image-only certificates, and a received date earlier than the domain registration. The owner explained that the 100.0% figure reflected Accumark's pass/fail reporting against a specification, and we confirmed in Accumark's portal that the launch batch was sampled in February and March 2026 and analysed on 18 May 2026. Neither laboratory holds ISO/IEC 17025 accreditation on our record. Scores reflect the certificates we could verify at the issuing laboratories; how a vendor responds to an audit is not an input to the formula.
Zeptix Labs COAs and lab test results
One row per product: the certificate on file and how the lab rule reads it, the laboratory that issued it and its tier, the date it was tested, the purity it reports, and the lowest price per milligram we recorded (per IU or mL where a product is sold that way).
Freedom Diagnostics TestingTier Atested
- Purity
- 99.88%
- Price per mg
- $2.67$159.99 / 30mgbest of 3 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.22%
- Price per mg
- $5.00$99.99 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.86%
- Price per mg
- $0.40$39.99 / 50mgbest of 2 sizes
Accumark LabsTier B+tested
- Purity
- 99.699%
- Price per mg
- $3.00$59.99 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.32%
- Price per mg
- $3.00$59.99 / 10mg
Accumark LabsTier B+tested
- Purity
- 99.909%
- Price per mg
- $3.67$110.00 / 30mgbest of 2 sizes
Accumark LabsTier B+tested
- Purity
- 99.56%
- Price per mg
- $7.00$70.00 / 10mgbest of 2 sizes
Accumark LabsTier B+tested
- Purity
- 99.1%
- Price per mg
- $9.50$95.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.58%
- Price per mg
- $0.81$129.99 / 80mg
Accumark LabsTier B+tested
- Purity
- 99.61%
- Price per mg
- $1.71$120.00 / 70mg
Accumark LabsTier B+tested
- Purity
- 99.453%
- Price per mg
- $6.00$29.99 / 5mg
Accumark LabsTier B+tested
- Purity
- 99.075%
- Price per mg
- $5.00$50.00 / 10mg
Accumark LabsTier B+tested
- Purity
- 99.08%
- Price per mg
- $8.00$80.00 / 10mg
Freedom Diagnostics TestingTier Afirst seen
- Purity
- 99.93%
- Price per mL
- $2.00$19.99 / 10 mLbest of 2 sizes
Accumark LabsTier B+tested
- Purity
- 99.72%
- Price per mg
- $5.00$99.99 / 20mg
Accumark LabsTier B+tested
- Purity
- 99.684%
- Price per mg
- $10.00$49.99 / 5mg
Accumark LabsTier B+tested
- Purity
- 99.44%
- Price per mg
- $3.00$29.99 / 10mg
Accumark LabsTier B+tested
- Purity
- 99.92%
- Price per mg
- $4.50$44.99 / 10mg
Accumark LabsTier B+tested
- Purity
- 99.08%
- Price per mg
- $7.00$34.99 / 5mg
Learn more about what Zeptix Labs carries
Zeptix Labs: Frequently Asked Questions
Is Zeptix Labs legit?
Zeptix Labs scores 8.17 out of 10 (Strong, #1 of 100) as of November 3, 2026 and passes our testing gate: all 18 products we score carry a certificate, 18 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is shipping and refunds (10.0/10); its weakest is operating history (1.3/10), with about six months of records. We also record that some of its certificates were issued to another business.
Is there a Zeptix Labs promo code, coupon code, or discount code?
Yes. Zeptix Labs issued us the reader code PSR20 for 20% off. Enter this Zeptix Labs promo code at checkout to claim the discount. If it stops working at checkout, tell us and we will update or remove it.
Does Zeptix Labs use third-party lab testing?
Yes. We have independently verified third-party COA evidence for this vendor. Laboratories on the certificates we hold: Accumark Labs, Freedom Diagnostics Testing.
Where can I see Zeptix Labs' COAs?
In the "Zeptix Labs COAs and lab test results" table on this page. We hold 19 certificates for Zeptix Labs, covering 19 of the 19 products we track, issued by 2 laboratories (Accumark Labs, Freedom Diagnostics Testing). 18 products' certificates were confirmed at the issuing laboratory itself. Each row links the certificate, its lab, its test date and the purity it reports.
What peptides does Zeptix Labs carry?
Zeptix Labs carries Retatrutide, Tesamorelin, GHK-Cu, BPC-157, MOTS-c, Tirzepatide, Semaglutide, TB-500, and 11 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.
Is the Zeptix Labs review on Peptide Source Review affected by affiliate status?
No. All affiliate relationships are publicly disclosed and never change a vendor's score, rank, or gate status. Our scoring formula is published in full and applied identically to every vendor.
Compare Zeptix Labs head-to-head
Want to understand how this score was built?
Read the full methodology or the editorial integrity policy. Disclosure: the link below is an affiliate link; it never affects the score.
Zeptix Labs8.17Strong
18 confirmed at the labAffiliate link