1 Ascension Peptides 9.5/10 3 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.882 Verified (opens in new tab) Kovera Labs Tier A- 7.55 Strong $11.00 $55.00 / 5mg Shop → Ascension Peptides (opens in new tab) Copy PSR50 copied (50% off, affiliate) 2 Limitless Biotech 9.5/10 3 base, +2 MZ Biolabs tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.75 Verified (opens in new tab) MZ Biolabs Tier A 6.97 Fair $10.56 $52.79 / 5mg Shop → Limitless Biotech (opens in new tab) Copy PSR copied (15% off, affiliate) 3 Southern Aminos 9.0/10 3 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.66 Verified (opens in new tab) ILS Laboratories Tier B+ 8.09 Strong $8.80 $44.00 / 5mg Shop → Southern Aminos (opens in new tab) 4 Amino Club 9.0/10 3 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.68 Verified (opens in new tab) ILS Laboratories Tier B+ 8.02 Strong $10.00 $49.99 / 5mg Shop → Amino Club (opens in new tab) 5 Modern Aminos 9.0/10 3 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.663 Verified (opens in new tab) Kovera Labs Tier A- 7.88 Strong $7.80 $39.00 / 5mg Shop → Modern Aminos (opens in new tab) 6 LabFirst Peptides 9.0/10 3 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.447 Verified (opens in new tab) Kovera Labs Tier A- 7.73 Strong $7.50 $75.00 / 10mg Shop → LabFirst Peptides (opens in new tab) Copy PSR10 copied (10% off, affiliate) 7 Protide Health 9.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.6 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.67 Strong $12.00 $60.00 / 5mg Shop → Protide Health (opens in new tab) 8 Verified Peptides 9.0/10 3 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.883 Verified (opens in new tab) Janoshik Analytical Tier B+ 7.67 Strong $9.80 $49.00 / 5mg Shop → Verified Peptides (opens in new tab) 9 Direct Peptides 9.0/10 3 base, +2 BioRegen tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.84 Verified (opens in new tab) BioRegen Tier A 7.43 Strong $15.80 $79.00 / 5mg Shop → Direct Peptides (opens in new tab) 10 Bluum Peptides 9.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.87 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.37 Strong $7.80 $39.00 / 5mg Shop → Bluum Peptides (opens in new tab) 11 Pure Health Peptides 8.5/10 3 base, +2 Ethos Analytics Laboratory tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, no purity figure Verified (opens in new tab) Ethos Analytics Laboratory Tier B+ 7.88 Strong $7.60 $76.00 / 10mg Shop → Pure Health Peptides (opens in new tab) 12 Amino USA 8.5/10 3 base, +2 BioRegen tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.79 Verified (opens in new tab) BioRegen Tier A 7.78 Strong $8.00 $80.00 / 10mg Shop → Amino USA (opens in new tab) 13 Onyx Biolabs 8.5/10 3 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.438 Verified (opens in new tab) Kovera Labs Tier A- 7.45 Strong $12.00 $59.99 / 5mg Shop → Onyx Biolabs (opens in new tab) 14 Honest Peptide 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.86 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.42 Strong $5.04 $50.40 / 10mg Shop → Honest Peptide (opens in new tab) Copy PSR20 copied (20% off, affiliate) 15 Oasis Labs 8.5/10 3 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 purity 99.8 Verified (opens in new tab) Bioviridian Tier A- 7.30 Strong $9.40 $47.00 / 5mg Shop → Oasis Labs (opens in new tab) 16 Peptides Source 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.928 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.17 Strong $7.00 $70.00 / 10mg Shop → Peptides Source (opens in new tab) 17 Profound Aminos 8.5/10 3 base, +2 Chromate tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.357 Verified (opens in new tab) Chromate Tier B+ 6.65 Fair $6.50 $65.00 / 10mg Shop → Profound Aminos (opens in new tab) 18 Peptyes 8.5/10 3 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.65 Verified (opens in new tab) Horizon Analytical Tier A- 6.55 Fair $13.20 $66.00 / 5mg Shop → Peptyes (opens in new tab) 19 Pinnacle Peptide Labs 8.5/10 3 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.26 Verified (opens in new tab) Horizon Analytical Tier A- 6.44 Fair $12.00 $59.99 / 5mg Shop → Pinnacle Peptide Labs (opens in new tab) Copy PSR15 copied (15% off, affiliate) 20 Research Peptides Lab 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.724 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 6.14 Fair $10.00 $50.00 / 5mg Shop → Research Peptides Lab (opens in new tab) 21 Peptide Pro 8.5/10 3 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 purity 99.78 Verified (opens in new tab) Bioviridian Tier A- 5.60 Fair $8.07 $80.75 / 10mg Shop → Peptide Pro (opens in new tab) 22 Prime Peptides 8.0/10 3 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.45 Verified (opens in new tab) Janoshik Analytical Tier B+ 7.94 Strong $12.00 $60.00 / 5mg Shop → Prime Peptides (opens in new tab) 23 Loti Labs 8.0/10 3 base, +2 SR Biolabs tier A-, +1.5 key, +1.5 key confirmed, 0 purity 99.48 Verified (opens in new tab) SR Biolabs Tier A- 7.68 Strong $10.00 $49.99 / 5mg Shop → Loti Labs (opens in new tab) 24 Pacific Edge Labs 8.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.04 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.15 Strong $11.99 $59.95 / 5mg Shop → Pacific Edge Labs (opens in new tab) 25 Paramount Peptides 8.0/10 3 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.6 Verified (opens in new tab) Janoshik Analytical Tier B+ 7.12 Strong $12.04 $72.25 / 6mg Shop → Paramount Peptides (opens in new tab) 26 StudzPeptides 8.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.58 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 6.99 Fair $2.70 $26.99 / 10mg Shop → StudzPeptides (opens in new tab) 27 NuuVive Peptides 8.0/10 3 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, no purity figure Verified (opens in new tab) Janoshik Analytical Tier B+ 6.93 Fair $9.60 $96.00 / 10mg Shop → NuuVive Peptides (opens in new tab) 28 Rogue Compounds 8.0/10 3 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.43 Verified (opens in new tab) ILS Laboratories Tier B+ 6.88 Fair $13.00 $64.99 / 5mg Shop → Rogue Compounds (opens in new tab) 29 Sports Technology Labs 8.0/10 3 base, +2 MZ Biolabs tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.02 Verified (opens in new tab) MZ Biolabs Tier A 6.88 Fair $7.20 $35.99 / 5mg Shop → Sports Technology Labs (opens in new tab) 30 Core Peptides 8.0/10 3 base, +2 Vanguard Laboratory tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.08 Verified (opens in new tab) Vanguard Laboratory Tier B+ 6.54 Fair $8.20 $41.00 / 5mg Shop → Core Peptides (opens in new tab) 31 NuScience Peptides 8.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.437 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 6.43 Fair $7.50 $59.99 / 8mg Shop → NuScience Peptides (opens in new tab) 32 Hacker Peptides 8.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.623 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 6.32 Fair $4.80 $24.00 / 5mg Shop → Hacker Peptides (opens in new tab) 33 NextGen Peps 8.0/10 3 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.089 Verified (opens in new tab) Janoshik Analytical Tier B+ 5.95 Fair $8.40 $42.00 / 5mg Shop → NextGen Peps (opens in new tab) Copy PSR10 copied (10% off, affiliate) 34 Cernum Biosciences 8.0/10 3 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.629 Verified (opens in new tab) Janoshik Analytical Tier B+ 4.50 Weak $10.60 $52.99 / 5mg Shop → Cernum Biosciences (opens in new tab) 35 Ageless Peptides 7.5/10 3 base, +2 Vanguard Laboratory tier B+, +1.5 key, +0.5 endotoxin, +0.5 purity 99.8 View (opens in new tab) Vanguard Laboratory Tier B+ 4.30 Weak $14.00 $69.99 / 5mg Shop → Ageless Peptides (opens in new tab) 36 Hello Stacks 7.0/10 3 base, +2 Vanguard Laboratory tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, -1.5 purity 98.46 Verified (opens in new tab) Vanguard Laboratory Tier B+ 6.14 Fair $6.90 $69.00 / 10mg Shop → Hello Stacks (opens in new tab) Copy PSR25 copied (25% off, affiliate) 37 Modified Aminos 6.5/10 3 base, +2 Ethos Analytics Laboratory tier B+, +1.5 key, no purity figure View (opens in new tab) Ethos Analytics Laboratory Tier B+ 6.75 Fair $8.00 $39.99 / 5mg Shop → Modified Aminos (opens in new tab) Copy PSR copied (10% off, affiliate) 38 VoriLabs 5.5/10 3 base, +2 Krause Analytical LLC tier B-, +0.5 purity 99.9 View (opens in new tab) Krause Analytical LLC Tier B- 6.87 Fair $8.00 $79.99 / 10mg Shop → VoriLabs (opens in new tab) 39 Prime Lab Peptides 5.0/10 3 base, +2 Freedom Diagnostics Testing tier A, 0 purity 99.1 View (opens in new tab) Freedom Diagnostics Testing Tier A 6.47 Fair $10.00 $50.00 / 5mg Shop → Prime Lab Peptides (opens in new tab) 40 Based Research 4.5/10 3 base, +0 Analytical Formulations tier C, +1.5 key, 0 purity 99.2 View (opens in new tab) Analytical Formulations Tier C 4.54 Weak $13.80 $69.00 / 5mg Shop → Based Research (opens in new tab) 41 Amino Amigos 3.5/10 3 base, +2 MZ Biolabs tier A, -1.5 purity 98.8 Verified (opens in new tab) MZ Biolabs Tier A 5.62 Fair $19.00 $38.00 / 2mg Shop → Amino Amigos (opens in new tab) 42 Azyrion Labs 3.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +0 key not found at the lab, -3 purity 96.75 View (key not found) (opens in new tab) Freedom Diagnostics Testing Tier A 5.45 Weak $9.39 $93.95 / 10mg Shop → Azyrion Labs (opens in new tab) 43 Biotech Peptides 2.0/10 self-issued by the vendor = 2.0 flat Vendor-issued (opens in new tab) — 5.79 Fair $8.80 $44.00 / 5mg Shop → Biotech Peptides (opens in new tab) 44 Peptide Warehouse 2.0/10 no laboratory named on the certificate = 2.0 flat Vendor report (lab not established) (opens in new tab) Third-party lab (undisclosed) 5.01 Weak $8.00 $79.99 / 10mg Shop → Peptide Warehouse (opens in new tab) 45 PSPeptides 2.0/10 North American Diagnostics tier D: independence not established = 2.0 flat Vendor report (lab not established) (opens in new tab) North American Diagnostics Tier D 3.95 Poor $8.00 $39.99 / 5mg Shop → PSPeptides (opens in new tab) 46 Prism Labs 2.0/10 Proof Point Analytical tier D: independence not established = 2.0 flat Vendor report (lab not established) (opens in new tab) Proof Point Analytical Tier D 3.92 Poor $10.00 $49.99 / 5mg Shop → Prism Labs (opens in new tab) 47 S1Research 0.0/10 no certificate None No third-party COA was publicly available at audit time — 7.75 Strong Not listedAOD 5mg w/Solution (listed at 45.00 against a struck 80.00) is shown 'Out of stock' with a back-in-stock notice, and is sold with a diluent ('includes one special water 10ml per 3 vials'), so it is not priced. Shop → S1Research (opens in new tab) 48 Raw Amino 0.0/10 no certificate None No third-party COA was publicly available at audit time — 5.70 Fair $10.00 $50.00 / 5mg Shop → Raw Amino (opens in new tab) 49 Vyal Labs 0.0/10 no certificate None No third-party COA was publicly available at audit time — 4.70 Weak $17.80 $89.00 / 5mg Shop → Vyal Labs (opens in new tab) 50 GenX Bio 0.0/10 no certificate None No third-party COA was publicly available at audit time — 4.45 Weak $8.80 $44.00 / 5mg Shop → GenX Bio (opens in new tab) 51 Peptide Labs 0.0/10 no certificate Login-gated COAs are provided but sit behind the vendor's login wall — 3.77 Poor $8.70 $86.99 / 10mg Shop → Peptide Labs (opens in new tab) 52 Peptide Pros 0.0/10 no certificate None No third-party COA was publicly available at audit time — 3.62 Poor $10.50 $52.50 / 5mg Shop → Peptide Pros (opens in new tab) 53 Spartan Peptides 0.0/10 no certificate None No third-party COA was publicly available at audit time — 3.38 Poor $19.80 $99.00 / 5mg Shop → Spartan Peptides (opens in new tab) 54 Nextday Peptides 0.0/10 no certificate None No third-party COA was publicly available at audit time — 3.27 Poor $12.75 $127.50 / 10mg Shop → Nextday Peptides (opens in new tab) 55 YourFitnessPeptides 0.0/10 no certificate None No third-party COA was publicly available at audit time — 2.75 Poor $11.51 $57.54 / 5mg Shop → YourFitnessPeptides (opens in new tab) 56 Stack Research 0.0/10 posted copy differs from the lab's copy = 0 View COA (differs from lab copy) (opens in new tab) Accumark Labs Tier B+ 2.51 Poor Not listedAOD-9604 5 mg is shown 'Out of stock' on the product page and is absent from the Store API catalogue on 2026-11-01; the product is still listed, so it is carried, but an out-of-stock size is not priced. Price is the single-vial price a buyer pays on 2026-11-01 (WooCommerce Store API and product page): every product is on an undated sale that is not tied to an event or season, so under rule E the sale price is the price at this first review and the higher regular price in the Store API is not used. Not counted (rule E1): the sitewide code STACK20, the first-order email code, the automatic volume pricing at 3, 5 and 10 vials, and the 3-item and 5-item Stack Builder discounts, which need a code or more than one vial. Shop → Stack Research (opens in new tab) 57 Peptara Labs 0.0/10 no certificate None No third-party COA was publicly available at audit time — 2.38 Poor Not listedAOD-9604 is listed in the store as a pre-order on 2026-11-02 (structured data availability PreOrder; the page says it ships 14 November 2026); it is orderable, so it is carried under the coverage rule, and like an out-of-stock size it is not priced until it is in stock. Nothing was added to a cart. Shop → Peptara Labs (opens in new tab) 58 Welon Peptide Solutions 0.0/10 no certificate None No third-party COA was publicly available at audit time — 2.13 Poor $2.26 $226.00 / 10 x 10mg pack Shop → Welon Peptide Solutions (opens in new tab) 59 Medura Peptides 0.0/10 no certificate None No third-party COA was publicly available at audit time — 1.63 Poor $18.00 $89.99 / 5mg Shop → Medura Peptides (opens in new tab)