Peptides
Research peptides are widely used off-label for injury recovery, tissue repair, and other targeted effects. The animal data is interesting; the human outcomes data is sparse, mostly anecdotal, and quality control across the supplier market is highly variable. The peptide category sits at the frontier of what's experimentally available outside formal trials. Users who proceed typically work with physicians familiar with the space, sourcing matters enormously, and the evidence base — while developing — is not yet ready for confident recommendations.
Product purity is highly variable across the supplier market. Long-term effects are largely unknown. Drug interactions are uncharacterized for most compounds. This group scaffolds the first four members of a roster eventually covering ~20 compounds: BPC-157 and TB-500 (tissue repair), GHK-Cu (a copper peptide used topically/systemically for skin and wound healing), and MOTS-c (a mitochondrial-derived peptide studied for metabolic effects).
Members
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BPC-157
Synthetic peptide fragment studied for tissue repair. Animal data promising; human evidence sparse.
Gray zone -
GHK-Cu
Copper peptide studied topically and systemically for skin repair and wound healing.
Gray zone -
MOTS-c
Mitochondrial-derived peptide studied for metabolic effects. Early-stage research, minimal human data.
Gray zone -
TB-500
Synthetic thymosin beta-4 fragment studied for tissue repair. Animal data promising; human evidence sparse.
Gray zone