Ghk-cu Purity: 3457 Lab Tests Across 1172 Identified Manufacturers

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

We tested 3457 Ghk-cu batches across 1172 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, 480 batches have unresolved manufacturer identity. They remain in corpus-level lab evidence and are excluded from named-manufacturer rankings.

99.72%
Avg purity
3457
Batches tested
1172
Identified manufacturers
2
Failed <90% purity
327
Underdosed >10%
ManufacturerBatchesAvg purity
54 99.79% Reveal with Pro →
51 99.86% Reveal with Pro →
35 99.81% Reveal with Pro →
35 99.72% Reveal with Pro →
29 99.85% Reveal with Pro →
25 99.82% Reveal with Pro →
25 99.73% Reveal with Pro →
22 99.91% Reveal with Pro →

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

Recent certificates: #81419 (99.84%) · #81420 (99.9%) · #81378 (99.99%) · #80905 (99.41%) · #81141 (99.86%) · #81142 (99.98%)

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.

54 COAs · 99.8% avg 51 COAs · 99.9% avg 35 COAs · 99.8% avg 35 COAs · 99.7% avg 29 COAs · 99.9% avg 25 COAs · 99.8% avg 25 COAs · 99.7% avg 22 COAs · 99.9% avg 22 COAs · 99.9% avg 22 COAs · 99.8% avg 20 COAs · 99.9% avg 20 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