Cosmic Peptides research library

Research library

A reference for the chemistry and analysis of research peptides: how they are made, tested and characterised, and how to read the data that comes with them. Written on research-use-only terms, with every source checked.

Methods and analytics

How research peptides are made, tested and characterised, and how to read the results.

Research-use-only compliance

What "research use only" means in law, how the FDA decides what a product is really for, the mistakes that turn research chemicals into unapproved drugs, what strict compliance costs, and where regulation is heading. We publish this because we hold ourselves to it.

  1. Part 1What "research use only" means in lawA research-use-only label is a statement of intent. Under federal drug law, intent is judged from everything a seller says and does, and a disclaimer cannot outweigh the rest of the evidence.Read
  2. Part 2How the FDA decides what a product is forWhat FDA's 2025–2026 warning letters to research-use-only peptide sellers quote as evidence of intended use, from direct claims and coded names to solvents, calculators and category text.Read
  3. Part 3Common mistakes in research-use-only supplySeventeen decisions, each commercially sensible on its own, that turn research chemicals into unapproved drugs in the eyes of the law.Read
  4. Part 4What strict compliance costsStrict research-use-only compliance removes most of the market, closes the fastest channels and adds permanent overhead. Why it is a business model, not a disclaimer.Read
  5. Part 5Where research-use-only regulation is headingWhat has already changed in how FDA finds and acts on violations, what we expect next, and the capabilities a research-use-only platform will need to prove its compliance.Read

Glossary

37 terms, from amino acid analysis to trifluoroacetate. Browse the glossary with definitions.

How the library is written

Articles cover chemistry, analytical methods and published in vitro research only. Every citation is checked against the publisher's record, and each article shows when it was last reviewed. Read the editorial policy.

For in vitro laboratory research only. Not for human or veterinary use. This library describes chemistry, analytical methods and published laboratory research; it gives no guidance on use in people or animals.