Ghk-cu Purity: 4085 Lab Tests Across 1260 Identified Manufacturers

94 studies on Ghk-cu curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 4085 Ghk-cu batches across 1260 identified manufacturers

Independent certificate-of-analysis evidence from third-party labs — the data behind the studies. Updated as new COAs are verified. Read the full grey-market analysis →

Within that total, 811 batches have unresolved manufacturer identity. They remain in corpus-level lab evidence and are excluded from named-manufacturer rankings.

99.72%
Avg purity
4085
Batches tested
1260
Identified manufacturers
2
Failed <90% purity
354
Underdosed >10%
ManufacturerBatchesAvg purity
57 99.78% Reveal with Pro →
52 99.86% Reveal with Pro →
39 99.73% Reveal with Pro →
35 99.81% Reveal with Pro →
29 99.85% Reveal with Pro →
25 99.82% Reveal with Pro →
25 99.73% Reveal with Pro →
24 99.77% Reveal with Pro →

Manufacturer identities are included with Pro. Batch counts and lab measurements remain visible.

Recent certificates: #90567 (99.53%) · #91361 (99.98%) · #93233 (99.95%) · #93234 (99.89%) · #93709 (99.99%) · #94822 (99.5%)

Vendors who tested Ghk-cu

Manufacturers with published third-party certificates of analysis for Ghk-cu. Names are available with Pro; evidence metrics remain visible.

57 COAs · 99.8% avg 52 COAs · 99.9% avg 39 COAs · 99.7% avg 35 COAs · 99.8% avg 29 COAs · 99.9% avg 25 COAs · 99.8% avg 25 COAs · 99.7% avg 24 COAs · 99.8% avg 23 COAs · 99.8% avg 22 COAs · 99.9% avg 22 COAs · 99.9% avg 21 COAs · 99.9% avg

Research tools

Free, no account — handy when you're working with Ghk-cu.

Reconstitution calculator Bac water, concentration & insulin-unit math Verify a COA Look up a report number against our corpus