Ghk-cu Purity: 2707 Lab Tests Across 1097 Vendors

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

We tested 2707 Ghk-cu batches across 1097 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 →

99.73%
Avg purity
2707
Batches tested
1097
Manufacturers
1
Failed <90% purity
264
Underdosed >10%
ManufacturerBatchesAvg purity
Hk Peptides 48 99.86% View COA →
Qing Li Peptide 35 99.81% View COA →
Unknown vendor (review) 35 99.64% View COA →
Peptaris 33 99.72% View COA →
Uther Peptide 31 99.77% View COA →
Reta Peptide 27 99.85% View COA →
Lilipeptide 24 99.81% View COA →
Wuhan Wansheng Biotechnology 22 99.91% View COA →

Recent certificates: #28002 (99.84%) · #31777 (99.65%) · #26662 (99.73%) · #32094 (99.66%) · #32113 (99.68%) · #32152 (99.91%)

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 48 COAs · 99.9% avg QLP 35 COAs · 99.8% avg Peptaris 33 COAs · 99.7% avg UTHER 31 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 Peptira LLC 20 COAs · 99.7% avg Tianjin Ruiwang New Material Technology Co 19 COAs · 99.9% avg Peptide Sciences 19 COAs · 99.8% 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