Tesamorelin Purity: 765 Lab Tests Across 187 Vendors

35 studies (5 from unattributed sources) on Tesamorelin curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 765 Tesamorelin batches across 187 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 →

98.07%
Avg purity
765
Batches tested
187
Manufacturers
29
Failed <90% purity
119
Underdosed >10%
ManufacturerBatchesAvg purity
Hk Peptides 35 99.39% View COA →
Nexaph 33 97.7% View COA →
Shanghai Sigma Audley Ssa 30 96.14% View COA →
Wuhan Wansheng Biotechnology 25 93.89% View COA →
Allen Biotechnology Co Abc 23 97.94% View COA →
Qing Li Peptide 20 96.69% View COA →
Reta Peptide 19 98.87% View COA →
Lilipeptide 19 96.06% View COA →

Recent certificates: #22175 (99.9%) · #22196 (99.9%) · #16612 (97.644%) · #22195 (98.9%) · #22201 (99.9%) · #14733 (99.8%)

Vendors who tested Tesamorelin

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

Hk Peptides 35 COAs · 99.4% avg Nexaph 33 COAs · 97.7% avg SSA 30 COAs · 96.1% avg Wuhan Wansheng Biotechnology 25 COAs · 93.9% avg ABC 23 COAs · 97.9% avg QLP 20 COAs · 96.7% avg Reta Peptide 19 COAs · 98.9% avg Lilipeptide 19 COAs · 96.1% avg UTHER 18 COAs · 99.7% avg SRY 18 COAs · 98.0% avg Tianjin Ruiwang New Material Technology Co 15 COAs · 97.7% avg Oupeptide 14 COAs · 96.2% avg

Research tools

Free, no account — handy when you're working with Tesamorelin.

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