Every product is third-party tested with full Certificate of Analysis documentation. ≥98% purity. No compromises. No exceptions.
Our most popular compounds — all with published third-party COAs
Need a peptide not listed? Contact us — we source custom compounds.
Every batch undergoes rigorous independent analysis. No exceptions.
Mass spectrometry confirms the molecular identity of each compound. We verify that what's on the label is in the vial.
HPLC analysis reports percent purity for each documented batch. Our standard is ≥98%.
Quantitative measurement of actual peptide content versus labeled amount.
Visual inspection of the lyophilized powder or solution for quality control.
Full traceability from synthesis to shipment. Every batch has its own COA.
Every Certificate of Analysis is published, accessible, and verifiable. View COA Library →
Verified reviews from the research community
"The transparency is unmatched. Every batch has a COA, the purity is consistently ≥99%, and shipping is always within 48 hours. My lab has switched entirely to Curtis."
"I've used multiple peptide suppliers over the years. The HPLC purity reports and net content analysis that Curtis provides are head and shoulders above anyone else."
"BPC-157 and TB-500 from here have been rock solid. The subscribe & save option means I never run out. Genuinely the best peptides I've sourced for my research."
In-depth guides, research summaries, and compound profiles
A comprehensive overview of BPC-157's mechanism of action, published studies, and research applications.
8 min read → METABOLICComparing the mechanisms, efficacy data, and research findings for GLP-1 and dual GIP/GLP-1 agonists.
12 min read → LONGEVITYExploring the role of nicotinamide adenine dinucleotide in cellular energy, DNA repair, and aging models.
10 min read → GUIDEA step-by-step guide to understanding HPLC purity reports, mass spectrometry data, and peptide content analysis.
6 min read → RECOVERYAn in-depth look at TB-500's role in cellular regeneration, wound healing models, and tissue repair studies.
9 min read → PROTOCOLBest practices for reconstitution, storage temperature, shelf life, and maintaining peptide integrity in the lab.
7 min read →Join our research community. Exclusive offers, new product alerts, and educational content — delivered to your inbox.
Every supplier makes purity claims. We prove ours. Every batch of every product is independently tested by third-party laboratories. The results — identity, purity, net content, appearance — are published in full. Not on request. Not selectively. Always.
Our mission is simple: be the most trusted name in research peptides. That means uncompromising quality, radical transparency, and respect for the research community.
Questions about products, bulk orders, or custom synthesis?
support@curtispeptides.com
Need a specific compound? We source custom peptides.
Volume pricing available for research institutions.
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