CJC-1295 Purity: 370 Lab Tests Across 98 Vendors

25 studies (1 from unattributed sources) on CJC-1295 curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 370 CJC-1295 batches across 98 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 →

94.78%
Avg purity
370
Batches tested
98
Manufacturers
53
Failed <90% purity
93
Underdosed >10%
ManufacturerBatchesAvg purity
Qing Li Peptide 18 99.01% View COA →
Peptide Sciences 11 99.35% View COA →
Hk Peptides 11 98.82% View COA →
Elite Research Usa 10 90.8% View COA →
Peptide Gurus 9 98.29% View COA →
Paramount Peptides 9 98.11% View COA →
Peptide Partners 9 96.96% View COA →
Nexaph 9 95.95% View COA →

Recent certificates: #21755 (99.9%) · #21761 (99.7%) · #20296 (99.624%) · #20297 (99.624%) · #21764 (99.9%) · #13223 (99.645%)

Vendors who tested CJC-1295

Manufacturers with published third-party certificates of analysis for CJC-1295. Open a vendor to see every batch we've verified.

QLP 18 COAs · 99.0% avg Peptide Sciences 11 COAs · 99.4% avg Hk Peptides 11 COAs · 98.8% avg Elite Research Usa 10 COAs · 90.8% avg Peptide Gurus 9 COAs · 98.3% avg Paramount Peptides 9 COAs · 98.1% avg Peptide Partners 9 COAs · 97.0% avg Nexaph 9 COAs · 95.9% avg Skye Peptides 8 COAs · 99.0% avg Limitless Life Nootropics 8 COAs · 93.2% avg Astro Peptides 8 COAs · 84.2% avg UTHER 7 COAs · 99.7% avg

Research tools

Free, no account — handy when you're working with CJC-1295.

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