Vendor Trust Scorecard
How we evaluate and rank peptide research vendors — transparent criteria, community-driven.
Scoring Criteria
COA Verified
30%Third-party lab testing is the strongest indicator of product quality
Payment Transparency
20%Accepts standard payment methods (card, PayPal)
Community Reviewed
20%Verified reviews from the r/BioHackingGuide community
Shipping Coverage
15%Reliable domestic and international shipping
Active Listings
15%Maintains a current, active product catalog
Vendor Rankings
| # | Vendor | Score | COA | Payment | Community | Shipping | Listings | Coupon | Link |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Optimum Formula | 100 | Visit | ||||||
| 2 | Research Chem HQ | 100 | Visit | ||||||
| 3 | Paramount Peptides | 100 | Visit | ||||||
| 4 | Nova Peptide Supply | 100 | Visit | ||||||
| 5 | BH Labs | 100 | Visit | ||||||
| 6 | Modern Aminos | 70 | Visit | ||||||
| 7 | LimitlessBioChem | 70 | Visit | ||||||
| 8 | Melts™ | 70 | Visit |
Vendor Red Flags
- No COA or only self-tested results
- Only crypto / untraceable payments
- No reviews or all 5-star (suspicious pattern)
- Vague or no shipping information
- No customer support or contact info
- Prices drastically below market average
Scoring Methodology
COA verification carries the highest weight (30%) because third-party testing is the strongest indicator of product quality. Community reviews (20%) and payment transparency (20%) are weighted equally, while shipping coverage and listing activity each contribute 15%.