| 1 | Peptide Giants (partner)
Lab: Janoshik Analytical · Vanguard Laboratory | 10/10 | 36.00 (3.60/mg, 5 Sept 2026) | — | 4.6 (59 reviews) |
| 2 | Purgo Labs (partner)
Lab: SteriGenix · Freedom Diagnostics | 10/10 | 44.99 (4.50/mg, 3 Aug 2026) | — | 4.7 (80 reviews) |
| 3 | Chameleon Peptides
Lab: Janoshik Analytical · Vanguard | 10/10 | 53.10 (5.31/mg, 27 Aug 2026) | 5mg 34.20 · 15mg 69.00 | 4.9 (311 reviews) |
| 4 | Idun Peptides
Lab: Kovera Labs (named in certificate captions only) | 9/10 | 27.99 (2.80/mg, 5 Sept 2026) | — | 4.8 (97 reviews) |
| 5 | TrustedPeps (partner)
Lab: Freedom Diagnostics (on certificates) | 9/10 | 30.00 (3.00/mg, 5 Sept 2026, sale price) | — | 4.7 (90 reviews) |
| 6 | Amino Club (partner)
Lab: ILS Labs | 9/10 | 39.99 (4.00/mg, 23 Aug 2026) | — | 4.6 (400 reviews) |
| 7 | Ameano Peptides (partner)
Lab: Janoshik Analytical | 9/10 | 44.00 (4.40/mg, 5 Sept 2026) | — | 4.7 (407 reviews) |
| 8 | EZ Peptides (partner)
Lab: Janoshik Analytical | 8/10 | 44.00 (4.40/mg, 6 Sept 2026) | — | no record |
| 9 | PeakForce Labs
Lab: Freedom Diagnostics (on certificates) | 8/10 | 49.00 (4.90/mg, 5 Sept 2026, verifier-corrected from $40) | — | 4.8 (156 reviews) |
| 10 | Mile High Compounds (partner)
Lab: Kovera Labs · Chromate | 8/10 | 49.99 (5.00/mg, 11 Sept 2026, sale price; list $59.99) | — | 4.8 (485 reviews) |
| 11 | Rivn Peptides
Lab: Freedom Diagnostics | 8/10 | 49.99 (5.00/mg, 27 Aug 2026, sale price; list $59.99) | — | 4.9 (326 reviews) |
| 12 | BioLongevity Labs
Lab: SafeCert Labs · MDx BioAnalytical · BioRegen | 8/10 | 49.99 (5.00/mg, 5 Sept 2026, sale price; 'regular' $99.97) | — | no record |
| 13 | Puratek Peptides
Lab: ILS Laboratories (on certificates) · page credits Freedom Diagnostics | 7/10 | 29.95 (3.00/mg, 5 Sept 2026, read via public store API) | — | no record |
| 14 | Global Aminos
Lab: Freedom Diagnostics (on certificates) | 7/10 | 35.39 (3.54/mg, 5 Sept 2026) | — | 4.7 (38 reviews) |
| 15 | Purus Peptides
Lab: Janoshik Analytical (peptides) · Vanguard Laboratory (ancillaries) | 7/10 | 37.00 (3.70/mg, 5 Sept 2026) | — | 4.4 (26 reviews) |
| 16 | Everest Peptides
Lab: Freedom Diagnostics | 7/10 | 37.49 (3.75/mg, 5 Sept 2026) | — | 4.8 (45 reviews) |
| 17 | Midwest Peptide
Lab: Precision Mass Spec (on certificates) | 7/10 | 39.99 (4.00/mg, 5 Sept 2026) | — | 4.9 (259 reviews) |
| 18 | Instant Peptides
Lab: Kovera Labs · Freedom Diagnostics | 7/10 | 44.95 (4.50/mg, 6 Sept 2026) | — | no record |
| 19 | Glacier Aminos
Lab: Ethos Analytics (on certificates) | 7/10 | 45.99 (4.60/mg, 5 Sept 2026, low end of 10/20mg range; read via public store API) | — | 4.6 (113 reviews) |
| 20 | Profound Aminos
Lab: Janoshik Analytical | 7/10 | 46.00 (4.60/mg, 6 Sept 2026) | 5mg 37.00 | 4.6 (216 reviews) |
| 21 | Modern Aminos (partner)
Lab: Freedom Diagnostics (on certificate) · Kovera · Vanguard · Chromate · TrustPointe (claimed) | 7/10 | 47.60 (4.76/mg, 6 Sept 2026) | 5mg 26.60 | no record |
| 22 | Honest Peptide
Lab: Freedom Diagnostics (on certificates) | 7/10 | 49.00 (4.90/mg, 5 Sept 2026) | — | 4.3 (44 reviews) |
| 23 | Disguised Alpha
Lab: Chromate | 7/10 | 54.99 (5.50/mg, 23 Aug 2026) | 5mg 34.99 | no record |
| 24 | Evo Labs Research
Lab: Janoshik Analytical · Kovera Labs | 7/10 | not sold at 10mg | 5mg 39.99 | 4.5 (26 reviews) |
| 25 | PS Peptides (partner)
Lab: North American Diagnostics | 7/10 | 89.99 (9.00/mg, 5 Sept 2026) | 5mg 49.99 | 4.1 (174 reviews) |
| 26 | Elite Edge Biotech (partner)
Lab: Baler Lab | 6/10 | 38.00 (3.80/mg, 23 Aug 2026, sale price; list $76) | 5mg 23.00 | 4.7 (168 reviews) |
| 27 | Arizen BioLabs (partner)
Lab: Janoshik (on certificates) | 6/10 | 49.99 (5.00/mg, 5 Sept 2026) | — | 4.8 (42 reviews) |
| 28 | AMC Essentials | 6/10 | 59.99 (6.00/mg, 11 Sept 2026) | — | 4.9 (295 reviews) |
| 29 | NeuroLabs Research
Lab: Freedom Diagnostics | 6/10 | 60.00 (6.00/mg, 5 Sept 2026, page titled 10mg; description says 5mg) | — | 4.1 (31 reviews) |
| 30 | Optima Supply
Lab: Janoshik Analytical · Chromate Labs · ILS-Lab | 6/10 | 85.00 (8.50/mg, 5 Sept 2026, homepage lists $55 for the same item) | — | no record |
| 31 | BioEdge Research Labs | 5/10 | 49.00 (4.90/mg, 11 Sept 2026, sale price; list $59.00) | — | 4.5 (15 reviews) |
| 32 | Ascension Peptides
Lab: Kovera Labs · MZ Biolabs | 5/10 | 49.00 (4.90/mg, 11 Sept 2026, sale price; list $74.99) | — | no record |
| 33 | Core Peptides | 3/10 | 97.00 (9.70/mg, 2 Aug 2026) | — | 4.0 (65 reviews, Knoji) |
| 34 | Ascend Amino | 2/10 | 40.00 (4.00/mg, 5 Sept 2026, read from the store's public product API) | — | 4.6 (39 reviews) |
| 35 | FelixChem (Felix Chemical Supply) | 2/10 | 54.99 (5.50/mg, 11 Sept 2026, store feed; product pages redirect to registration) | — | 3.5 (2 reviews) |
| 36 | Polaris Peptides | 2/10 | 60.00 (6.00/mg, 6 Sept 2026, public store API; storefront hides prices) | — | 4.1 (34 reviews) |
| 37 | Atomik Labz | 2/10 | 73.00 (7.30/mg, 11 Sept 2026, store feed; product pages require login) | 5mg 40.00 · 20mg 110.00 | 2.7 (34 reviews) |