SS-31 Purity: 851 Lab Tests Across 498 Vendors

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

We tested 851 SS-31 batches across 498 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 →

99.78%
Avg purity
851
Batches tested
498
Manufacturers
46
Underdosed >10%
ManufacturerBatchesAvg purity
Peptaris 32 99.74% View COA →
Unknown vendor (review) 13 99.69% View COA →
Verified Peptides 9 99.85% View COA →
Simple Peptide 9 99.84% View COA →
Uther Peptide 8 99.81% View COA →
Ion Peptide 7 99.91% View COA →
MRP 7 99.88% View COA →
Felix Chemical Supply 7 99.84% View COA →

Recent certificates: #27959 (99.88%) · #32090 (99.73%) · #32149 (99.89%) · #39185 (99.83%) · #41473 (99.73%) · #51881 (99.92%)

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.

Peptaris 32 COAs · 99.7% avg Simple Peptide 9 COAs · 99.8% avg Verified Peptides 9 COAs · 99.8% avg UTHER 8 COAs · 99.8% avg Ion Peptide 7 COAs · 99.9% avg MRP 7 COAs · 99.9% avg Felix Chemical Supply 7 COAs · 99.8% avg GYC 7 COAs · 99.5% avg ABC 7 COAs · 99.4% avg Clinical Biomed LLC 6 COAs · 99.9% avg Planet Peptide 6 COAs · 99.9% avg Coffee And Peppers 6 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