1 Southern Aminos 9.5/10 3 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.72 Verified (opens in new tab) ILS Laboratories Tier B+ 8.09 Strong $1.13 $79.20 / 70mg Shop → Southern Aminos (opens in new tab) 2 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 99.44 Verified (opens in new tab) ILS Laboratories Tier B+ 8.02 Strong $1.29 $89.99 / 70mg Shop → Amino Club (opens in new tab) 3 Ameano Peptides 9.0/10 3 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, no purity figure Verified (opens in new tab) Janoshik Analytical Tier B+ 7.80 Strong $1.26 $88.00 / 70mg Shop → Ameano Peptides (opens in new tab) Copy peptidesourcerehog copied (10% off, affiliate) 4 S1Research 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 99.48 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.75 Strong $0.60 $42.00 / 70mg Shop → S1Research (opens in new tab) 5 Ascension 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 99.612 Verified (opens in new tab) Kovera Labs Tier A- 7.55 Strong $1.57 $110.00 / 70mg Shop → Ascension Peptides (opens in new tab) Copy PSR50 copied (50% off, affiliate) 6 Bluum Peptides 9.0/10 3 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin (separate report), +0.5 purity 99.86 Verified (opens in new tab) Horizon Analytical Tier A- 7.37 Strong $1.64 $115.00 / 70mg Shop → Bluum Peptides (opens in new tab) 7 BioLongevity Labs 9.0/10 3 base, +2 MDx BioAnalytical Laboratory tier A+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0 accreditation (tested 2026-05-01, before 2026-06-09), +0.5 purity 99.71 Verified (opens in new tab) MDx BioAnalytical Laboratory Tier A+ 7.24 Strong $3.71 $259.97 / 70mg Shop → BioLongevity Labs (opens in new tab) Copy PSR copied (15% off, affiliate) 8 Hello Stacks 9.0/10 3 base, +2 Vanguard Laboratory tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.8 Verified (opens in new tab) Vanguard Laboratory Tier B+ 6.14 Fair $1.84 $129.00 / 70mg Shop → Hello Stacks (opens in new tab) Copy PSR25 copied (25% off, affiliate) 9 NextGen Peps 9.0/10 3 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.71 Verified (opens in new tab) Bioviridian Tier A- 5.95 Fair $1.53 $107.00 / 70mg Shop → NextGen Peps (opens in new tab) Copy PSR10 copied (10% off, affiliate) 10 Based Research 9.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 sterility, +0.5 purity 99.76 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 4.54 Weak $3.57 $250.00 / 70mg Shop → Based Research (opens in new tab) 11 Direct Peptides 8.5/10 3 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.44 Verified (opens in new tab) Horizon Analytical Tier A- 7.43 Strong $1.64 $115.00 / 70mg Shop → Direct Peptides (opens in new tab) 12 Honest Peptide 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.88 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.42 Strong $1.36 $95.20 / 70mg Shop → Honest Peptide (opens in new tab) Copy PSR20 copied (20% off, affiliate) 13 Kyreon 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.91 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.29 Strong $1.70 $119.00 / 70mg — 14 VERATIS 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.77 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.21 Strong $1.79 $125.00 / 70mg Shop → VERATIS (opens in new tab) 15 Arctic Lab Supply 8.5/10 3 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.53 Verified (opens in new tab) ILS Laboratories Tier B+ 6.98 Fair $1.36 $94.99 / 70mg Shop → Arctic Lab Supply (opens in new tab) Copy PSRINFO copied (25% off, affiliate) 16 Rogue Compounds 8.5/10 3 base, +2 Vanguard Laboratory tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.8 Verified (opens in new tab) Vanguard Laboratory Tier B+ 6.88 Fair $1.79 $124.99 / 70mg Shop → Rogue Compounds (opens in new tab) 17 Peptyes 8.5/10 3 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.28 Verified (opens in new tab) Horizon Analytical Tier A- 6.55 Fair $1.93 $135.00 / 70mg Shop → Peptyes (opens in new tab) 18 Pulse Peptide Labs 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.748 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 6.50 Fair $2.00 $140.00 / 70mg Shop → Pulse Peptide Labs (opens in new tab) 19 Redline Bio Labs 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.83 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 4.80 Weak $1.50 $105.00 / 70mg Shop → Redline Bio Labs (opens in new tab) 20 Nextday Peptides 8.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.75 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 3.27 Poor $1.82 $127.50 / 70mg Shop → Nextday Peptides (opens in new tab) 21 Zeptix Labs 8.0/10 3 base, +2 Accumark Labs tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.61 Verified (opens in new tab) Accumark Labs Tier B+ 8.17 Strong $1.71 $120.00 / 70mg Shop → Zeptix Labs (opens in new tab) Copy PSR20 copied (20% off, affiliate) 22 Peptix USA 8.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.46 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 8.15 Strong $1.21 $85.00 / 70mg Shop → Peptix USA (opens in new tab) 23 Prime 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+ 7.94 Strong $1.86 $130.00 / 70mg Shop → Prime Peptides (opens in new tab) 24 LabFirst Peptides 8.0/10 3 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, 0 purity 99.416 Verified (opens in new tab) Kovera Labs Tier A- 7.73 Strong $1.86 $130.00 / 70mg Shop → LabFirst Peptides (opens in new tab) Copy PSR10 copied (10% off, affiliate) 25 Pacific Edge Labs 8.0/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.69 Verified (opens in new tab) Freedom Diagnostics Testing Tier A 7.15 Strong $1.64 $114.95 / 70mg Shop → Pacific Edge Labs (opens in new tab) 26 StudzPeptides 8.0/10 3 base, +2 Vanguard Laboratory tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.5 Verified (opens in new tab) Vanguard Laboratory Tier B+ 6.99 Fair $0.71 $49.99 / 70mg 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 $1.99 $139.00 / 70mg Shop → NuuVive Peptides (opens in new tab) 28 Modified Aminos 8.0/10 3 base, +2 Ethos Analytics Laboratory tier B+, +1.5 key, +1.5 key confirmed, no purity figure Verified (opens in new tab) Ethos Analytics Laboratory Tier B+ 6.75 Fair $0.86 $59.99 / 70mg Shop → Modified Aminos (opens in new tab) Copy PSR copied (10% off, affiliate) 29 FRO Peptides 8.0/10 3 base, +2 Accumark Labs tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.61 Verified (opens in new tab) Accumark Labs Tier B+ 6.50 Fair $1.86 $129.99 / 70mg Shop → FRO Peptides (opens in new tab) 30 JD BioWorks 8.0/10 3 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.65 Verified (opens in new tab) ILS Laboratories Tier B+ 6.34 Fair $1.29 $89.95 / 70mg Shop → JD BioWorks (opens in new tab) Copy PSR10 copied (10% off, affiliate) 31 Bionova Peptides 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 6.03 Fair $1.29 $89.99 / 70mg Shop → Bionova Peptides (opens in new tab) 32 Delix Labs 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+ 4.58 Weak $2.00 $140.00 / 70mg Shop → Delix Labs (opens in new tab) 33 Cernum Biosciences 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+ 4.50 Weak $1.43 $99.99 / 70mg Shop → Cernum Biosciences (opens in new tab) 34 Ageless Peptides 7.0/10 3 base, +2 Vanguard Laboratory tier B+, +1.5 key, +0.5 endotoxin, 0 purity 99.5 View (opens in new tab) Vanguard Laboratory Tier B+ 4.30 Weak $1.14 $79.99 / 70mg Shop → Ageless Peptides (opens in new tab) 35 Peptides Source 6.5/10 3 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +0 key not found at the lab, 0 purity 99.559 View (key not found) (opens in new tab) Freedom Diagnostics Testing Tier A 7.17 Strong $1.71 $120.00 / 70mg Shop → Peptides Source (opens in new tab) 36 NextSelf Labs 6.5/10 3 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, -1.5 purity 98.17 Verified (opens in new tab) ILS Laboratories Tier B+ 6.26 Fair $1.86 $129.99 / 70mg Shop → NextSelf Labs (opens in new tab) 37 GhostLabz 6.5/10 3 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, -1.5 purity 98.17 Verified (opens in new tab) ILS Laboratories Tier B+ 6.14 Fair $1.29 $89.99 / 70mg Shop → GhostLabz (opens in new tab) 38 Vyal Labs 5.5/10 3 base, +2 Accurate Test Lab tier B-, +0.5 purity 99.77 View (opens in new tab) Accurate Test Lab Tier B- 4.70 Weak $2.56 $179.00 / 70mg Shop → Vyal Labs (opens in new tab) 39 VoriLabs 5.0/10 3 base, +2 Krause Analytical LLC tier B-, 0 purity 99.5 View (opens in new tab) Krause Analytical LLC Tier B- 6.87 Fair $1.87 $130.99 / 70mg Shop → VoriLabs (opens in new tab) 40 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 $1.21 $84.99 / 70mg Shop → Prism Labs (opens in new tab) 41 BioInfinity 2.0/10 Verum Analytics tier D: independence not established = 2.0 flat Vendor report (lab not established) (opens in new tab) Verum Analytics Tier D 3.70 Poor $3.00 $210.00 / 70mg Shop → BioInfinity (opens in new tab) Copy PSR10 copied (10% off, affiliate) 42 OMNI Peptides 0.0/10 no certificate None No third-party COA was publicly available at audit time — 6.08 Fair Out of stockOut of stock when checked 2026-10-21. Shop → OMNI Peptides (opens in new tab) 43 Vortex Research 0.0/10 no certificate None No third-party COA was publicly available at audit time — 5.50 Fair $1.07 $74.99 / 70mg Shop → Vortex Research (opens in new tab) 44 Lotus Peptide 0.0/10 no certificate None No third-party COA was publicly available at audit time — 3.68 Poor $0.71 $50.00 / 70mg Shop → Lotus Peptide (opens in new tab) 45 Pexo Labs 0.0/10 no certificate None No third-party COA was publicly available at audit time — 3.63 Poor $1.21 $84.99 / 70mg Shop → Pexo Labs (opens in new tab) 46 Drexa Labs 0.0/10 no certificate None No third-party COA was publicly available at audit time — 3.23 Poor $1.50 $105.00 / 70mg Shop → Drexa Labs (opens in new tab) 47 Snowman Research 0.0/10 no certificate None No third-party COA was publicly available at audit time — 3.06 Poor $1.29 $90.00 / 70mg Shop → Snowman Research (opens in new tab) 48 YourFitnessPeptides 0.0/10 no certificate None No third-party COA was publicly available at audit time — 2.75 Poor $1.86 $130.00 / 70mg Shop → YourFitnessPeptides (opens in new tab) 49 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 $2.14 $149.90 / 70mg Shop → Stack Research (opens in new tab) 50 Peptide Warehouse US 0.0/10 no certificate None No third-party COA was publicly available at audit time — 2.46 Poor $1.11 $780.00 / 10 x 70mg pack Shop → Peptide Warehouse US (opens in new tab) 51 Welon Peptide Solutions 0.0/10 no certificate None No third-party COA was publicly available at audit time — 2.13 Poor $0.40 $278.00 / 10 x 70mg pack Shop → Welon Peptide Solutions (opens in new tab) 52 Medura Peptides 0.0/10 no certificate None No third-party COA was publicly available at audit time — 1.63 Poor $2.25 $157.49 / 70mg Shop → Medura Peptides (opens in new tab)