Topic hub

Glossary

The peptide space has a jargon problem. GHRP, GHRH, IGF-1, lyophilised, subcutaneous — these terms appear in every study and most vendor listings without explanation. The glossary defines them plainly, links them to the articles and peptide pages that use each term, and doesn't treat you like someone who needs a disclaimer to handle a fact. If a term is stopping you from evaluating the evidence, start here.

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State of the evidence

The peptide space runs on jargon that slows down anyone who didn't spend six years in a biochemistry lab. GHRP, GHRH, IGF-1, angiogenesis, lyophilised — these terms appear in every study and most vendor listings. The glossary is the reference layer: plain-language definitions, linked to the articles and peptide pages that use each term. If a term appears in the research and you're not sure what it means, start here.

Signal snapshot: 2026-05-21

Telomere biology for non-biologists: what shortening actually means for ageing

WADA

Telomeres are repetitive DNA caps at chromosome ends; they shorten with cell division. Here is what telomerase actually does, what the human data shows, and where epitalon — the peptide attached to this story — sits in the July 2026 FDA review.

What is a peptide? The plain-language definition behind the headlines

Peptides are short chains of amino acids that act as biological signals. Some are drugs you already trust. Some are research chemicals nobody has cleared for human use. The difference matters more than the word does.