Bioactive molecules — Compounds — peptides, small molecules, or biologics — that produce a measurable physiological effect on a living organism through receptor binding, enzymatic activity, or signalling modulation.
Bioactive molecules are compounds — peptides, small molecules, proteins, or biologics — that produce a measurable physiological effect on a living organism. The effect may be agonism or antagonism at a receptor, modulation of enzymatic activity, alteration of gene expression, or direct interaction with cellular structures.
The peptides catalogued on Retapedia are bioactive by definition: each binds a specific receptor or enzyme and produces a measurable downstream response. Their use as therapeutic agents or as performance enhancers follows directly from that activity.
Peptide bioactivity
Short peptide sequences can be remarkably potent. Endogenous regulatory peptides such as GLP-1, ghrelin, and the GH-axis secretagogues act at low nanomolar concentrations and are subject to tight feedback regulation. Synthetic analogues are engineered to retain receptor binding while improving stability against proteolytic degradation — extending plasma half-life from minutes to days or weeks.
Catalogued bioactive peptides
Retapedia entries cover bioactive peptides spanning the GH/IGF-1 axis, incretin pathway (GLP-1 receptor agonists), tissue repair (BPC-157, TB-500), and metabolic regulation (NAD precursors). See the peptide category for the full list.
See also
External links
This page was last updated on May 23, 2026, at 00:00 (UTC).
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