The Peptide Index™
7 companies evaluated using 8 samples the Institute purchased anonymously and sent for independent laboratory analysis. Ranked by Index Score™.
Ranked #1 of 7
Research-compound supplier with published third-party COAs and consistent independent testing performance.
| Rank | Company | Index Score™ | Purity & Testing | Product Accuracy | Transparency | Fulfillment | Customer Experience | Value | Samples |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Apex Peptides Exceptional | 91 | 99 | 90 | 90 | 89 | 84 | 81 | 1 |
| 2 | Halcyon Biosciences Excellent | 89 | 99 | 86 | 90 | 87 | 86 | 78 | 2 |
| 3 | PureSci Labs Excellent | 89 | 99 | 92 | 95 | 76 | 80 | 78 | 1 |
| 4 | BioRegen Research Excellent | 87 | 99 | 89 | 82 | 85 | 78 | 76 | 1 |
| 5 | NextGen Peptides Excellent | 85 | 91 | 80 | 80 | 90 | 86 | 84 | 1 |
| 6 | Helix Research Supply Good | 79 | 87 | 73 | 68 | 84 | 82 | 78 | 1 |
| 7 | Sterling Compound Co. Good | 74 | 91 | 67 | 66 | 76 | 62 | 68 | 1 |
Scores combine six weighted dimensions: Purity & Testing (25%), Product Accuracy (20%), Transparency (20%), Fulfillment (15%), Customer Experience (10%), Value (10%). A company appears here only if the Institute has independently tested CJC-1295 purchased from it.
Free download
What peptides are, why people are using them, and what results people are talking about, in plain English. Sign up and we email you the Playbook right away.
