Research use only. Not for human or veterinary use.
Two reference libraries: 199 PubMed-sourced compound references, and certificate-of-analysis status by product.
Mechanism breakdowns, handling guides, and sourcing intel — separate from the libraries above.
“99% pure” is the single most quoted number on a peptide certificate and the most commonly misunderstood. It answers a narrower question than most people assume, and it doesn’t answer several other questions people assume it answers. This article is about what the number is actually measuring, and, just as important, what it isn’t testing […]
Read article → GuideA certificate reporting identity and purity has answered two questions: is this the compound it claims to be, and how much of what’s detected is that compound versus byproducts of synthesis. It has not addressed three other categories of contamination that are chemically and biologically unrelated to purity and require entirely separate tests to detect. […]
Read article → ReferenceNet peptide content, counter-ions and residual water mean the label mass and the peptide mass are different numbers. The arithmetic worked through, and why the error never averages out.
Read article → GuideReading a COA and trusting one are different problems. The four ways a certificate can be false, the checks that catch each, and why purity alone never confirms identity.
Read article → GuideWhat a COA actually reports, how to read an HPLC chromatogram, the difference between purity and net peptide content, and the warning signs of a certificate that means nothing.
Read article → GuideWhat actually degrades a peptide, what each storage temperature buys you, why freeze-thaw cycles cost more than people expect, and where published stability figures stop being useful.
Read article →This one is out of stock. Leave your email and you’ll hear from us the moment it’s on the shelf again — nothing else, no newsletter.
We use this address for this one restock alert. Research use only.