Peptide Vendors

15 vendors ranked by trust score. Ratings based on COA availability, third-party testing, community reputation, and compliance history.

Excellent: 80–100Good: 60–79Caution: 40–59Poor: 0–39

Vendor	Trust Score	COA	3rd Party	Reddit
1 Limitless Life Nootropics	77.55 B+	✓	—	—	View →
2 Core Peptides	74.75 B	✓	—	—	View →
3 Geo Peptides	74.75 B	✓	—	—	View →
4 Sports Technology Labs	74.75 B	✓	—	—	View →
5 Loti Labs	74.75 B	✓	—	—	View →
6 Peptide Sciences	74.75 B	✓	—	—	View →
7 Biotech Peptides	70.35 B	✓	—	—	View →
8 Peptide Warehouse	67.0 B-	✓	—	—	View →
9 Amino Asylum	63.75 C+	✓	—	—	View →
10 Behemoth Labz	63.75 C+	✓	—	—	View →
11 Blue Sky Peptide	58.75 C	✓	—	—	View →
12 Swiss Chems	54.75 C-	✓	—	—	View →
13 Peptide Pros	50.75 C-	✓	—	—	View →
14 American Peptide	44.75 D	✓	—	—	View →
15 Paradigm Peptides	44.75 D	✓	—	—	View →

Scoring methodology: Trust scores factor in COA availability, third-party testing, community sentiment (Reddit/Trustpilot/BBB), transparency practices, and compliance history. Higher scores indicate better verification practices — not endorsement. Learn more →