Read before you order.
Short, sourced notes on certificates, storage, compound chemistry and supplier due diligence. No protocols, no claims. New notes most days.
What is BPC-157? Structure, origin and the research models that have examined it
A primer on the pentadecapeptide BPC-157: where the sequence comes from, how it is made, and what the in-vitro and animal literature has studied.
What “research use only” means in 2026
The legal meaning of the research-use-only designation, who may purchase under it, what the attestation covers, and why a research supplier publishes no dosing information.
Lyophilized peptides: storage and stability
Why research peptides ship as freeze-dried powder, what degrades them, and the storage conditions that keep a sealed vial within specification.
How to read a peptide certificate of analysis
What the lot number, test method, purity figure and retention time on a COA actually mean, and the four checks that separate a real certificate from a decorative one.
Choosing a research peptide supplier after the 2025–2026 shutdowns
Peptide Sciences closed in March 2026 and at least seven other vendors went dark in eighteen months. The seven checks a researcher should run on any supplier before ordering.