SS-31 Purity: 122 Lab Tests Across 65 Vendors

83 studies on SS-31 curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 122 SS-31 batches across 65 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 →

99.66%
Avg purity
122
Batches tested
65
Manufacturers
7
Underdosed >10%
ManufacturerBatchesAvg purity
Verified Peptides 9 99.85% View COA →
GYC 7 99.51% View COA →
Allen Biotechnology Co Abc 7 99.35% View COA →
Qingdao Sigma Chemical 5 99.79% View COA →
(unknown) 4 99.79% View COA →
Reta Peptide 4 99.5% View COA →
Champion Peptide 3 99.92% View COA →
Uther Peptide 3 99.9% View COA →

Recent certificates: #22109 (99.5%) · #22110 (99.9%) · #11900 (99.727%) · #13513 (99.699%) · #22111 (98.7%) · #12219 (99.843%)

Vendors who tested SS-31

Manufacturers with published third-party certificates of analysis for SS-31. Open a vendor to see every batch we've verified.

Verified Peptides 9 COAs · 99.8% avg GYC 7 COAs · 99.5% avg ABC 7 COAs · 99.4% avg QSC 5 COAs · 99.8% avg Reta Peptide 4 COAs · 99.5% avg CHP 3 COAs · 99.9% avg TOP 3 COAs · 99.9% avg UTHER 3 COAs · 99.9% avg BARN 3 COAs · 99.8% avg FSD 3 COAs · 99.8% avg Peptide Gurus 3 COAs · 99.8% avg Xcel Peptides 3 COAs · 99.8% avg

Research tools

Free, no account — handy when you're working with SS-31.

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