Peptides people talk about for injury recovery.

A synthetic fragment loosely based on a stomach-protein sequence, sold as a heal-everything injury peptide. The internet loves it; the human evidence is almost non-existent.

A synthetic version of part of the thymosin beta-4 protein, sold as BPC-157's recovery sidekick. Popular in horse racing before it was popular in gyms — which tells you where the evidence comes from.

A tiny anti-inflammatory tripeptide, the 'K' bolted onto the GLOW stack to make KLOW. Sold as the gut/inflammation add-on — with essentially no human data behind it.