Ghk-cu Purity: 986 Lab Tests Across 214 Vendors

91 studies (19 from unattributed sources) on Ghk-cu curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 986 Ghk-cu batches across 214 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 →

99.81%
Avg purity
986
Batches tested
214
Manufacturers
184
Underdosed >10%
ManufacturerBatchesAvg purity
Hk Peptides 47 99.86% View COA →
Qing Li Peptide 34 99.81% View COA →
Reta Peptide 27 99.85% View COA →
Lilipeptide 24 99.81% View COA →
Wuhan Wansheng Biotechnology 22 99.91% View COA →
Verified Peptides 22 99.9% View COA →
Sry Labs 20 99.84% View COA →
Tianjin Ruiwang New Material Technology Co 19 99.91% View COA →

Recent certificates: #16616 (98.713%) · #21786 (99.9%) · #21791 (99.8%) · #21817 (99.9%) · #21842 (99.9%) · #21852 (99.9%)

Vendors who tested Ghk-cu

Manufacturers with published third-party certificates of analysis for Ghk-cu. Open a vendor to see every batch we've verified.

Hk Peptides 47 COAs · 99.9% avg QLP 34 COAs · 99.8% avg Reta Peptide 27 COAs · 99.8% avg Lilipeptide 24 COAs · 99.8% avg Verified Peptides 22 COAs · 99.9% avg Wuhan Wansheng Biotechnology 22 COAs · 99.9% avg SRY 20 COAs · 99.8% avg Tianjin Ruiwang New Material Technology Co 19 COAs · 99.9% avg Peptide Sciences 19 COAs · 99.8% avg UTHER 18 COAs · 99.9% avg SSA 16 COAs · 99.9% avg Yimei 15 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