The Peptide Index™

Best GHRP-2 companies

3 companies evaluated using 4 samples the Institute purchased anonymously and sent for independent laboratory analysis. Ranked by Index Score™.

Updated 4 samples tested How we rank →
Institute
Top Rated GHRP-2

Ranked #1 of 3

Halcyon Biosciences

Publishes batch-specific certificates of analysis and names its manufacturing partners, the documentation posture we most often find correlates with test performance.

  • 98.4% average purity across 2 samples
  • 99.3% average content accuracy vs. label
  • Most recent sample tested Mar 24, 2025
View full profile Read the lab report
89 Excellent 80–89

Full GHRP-2 rankings

Scoring methodology →
Rank Company Index Score™ Purity & TestingProduct AccuracyTransparencyFulfillmentCustomer ExperienceValue Samples
1 Halcyon Biosciences Excellent 89 998690878678 2
2 Atlas Peptide Labs Excellent 85 997972908382 1
3 Sterling Compound Co. Good 74 916766766268 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 GHRP-2 purchased from it.

GHRP-2 researchEvidence, mechanism, dosage research and studies Testing databaseEvery published lab report, with full methodology All rankingsOverall and category leaders across the Index

Free download

Get the free Peptide Playbook, plus new breakthroughs as they happen.

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.

Free. Unsubscribe anytime.

  • The Peptide Playbook, free in your inbox
  • Occasional updates on new developments
  • No spam, unsubscribe anytime