Best Testing Transparency
Companies ranked by verifiable quality documentation: batch-specific COAs, named laboratories, manufacturing disclosure, and performance in our independent testing program.
| Rank | Company | Tier | Index Score™ | Trend |
|---|---|---|---|---|
| 1 — rank 1 | Exceptional | 92/100 Apex Peptides: Index Score 92 out of 100, Exceptional | 1 moved up | |
| 2 — rank 2 | Most complete manufacturing disclosure we track. | Excellent | 87/100 PureSci Labs: Index Score 87 out of 100, Excellent | 1 moved down |
| 3 — rank 3 | Excellent | 89/100 Research Peptides Co.: Index Score 89 out of 100, Excellent | no change | |
| 4 | Excellent | 85/100 BioRegen Research: Index Score 85 out of 100, Excellent | 1 moved up | |
| 5 | Excellent | 81/100 Northstar Research Labs: Index Score 81 out of 100, Excellent | 1 moved down | |
| 6 | Good | 74/100 Novum BioResearch: Index Score 74 out of 100, Good | no change | |
| 7 | Excellent | 80/100 Meridian Peptide Research: Index Score 80 out of 100, Excellent | no change | |
| 8 | Excellent | 83/100 NextGen Peptides: Index Score 83 out of 100, Excellent | no change |