Plain-language, evidence-aware summaries of the peptides people are researching - the good, the bad, and what the science actually says.
Grouped the way researchers actually think about them.
GLP-1s, fat-loss and metabolic compounds - the most-searched category, home to the FDA-approved blockbusters.
Tissue-repair, gut, skin and immune peptides like BPC-157, TB-500, GHK-Cu and the thymosins.
Growth-hormone secretagogues and muscle/IGF compounds - from CJC-1295 and ipamorelin to IGF-1 and follistatin.
Focus, memory, mood and sleep peptides - Semax, Selank, Dihexa, Cerebrolysin and more.
Anti-aging and cellular-health compounds - Epithalon, NAD+, MOTS-c, SS-31 and senolytics.
Fertility and hormone-axis peptides - HCG, HMG, gonadorelin, kisspeptin and GnRH agonists.
Libido, tanning and cosmetic peptides - PT-141, melanotan and topical skin peptides.
Where most people start.
GLP-1 receptor agonist
FDA-approved weekly injectable / daily oral for diabetes and weight management (Novo Nordisk).
Dual GIP / GLP-1 agonist
FDA-approved weekly injectable for diabetes and obesity (Eli Lilly).
GLP-1 / GIP / glucagon triple agonist
Investigational once-weekly injectable for obesity/metabolic disease (Eli Lilly, LY3437943).
Synthetic pentadecapeptide
Lab-made 15-amino-acid peptide studied mainly in animals for healing tendon, muscle, gut and other tissue.
Synthetic thymosin beta-4 fragment
Synthetic ~7-amino-acid fragment reproducing the actin-binding region of thymosin beta-4; marketed for tissue repair. (Not full-length TB4.)
Copper-binding tripeptide
Naturally occurring copper-carrying peptide found in human plasma; widely used in skincare for anti-aging and repair.
GH secretagogue / ghrelin mimetic
A selective synthetic pentapeptide that stimulates the body's own GH release via the ghrelin receptor.
Mitochondrial-derived peptide
A 16-amino-acid peptide encoded in mitochondrial DNA that acts as a metabolic signaling molecule.
Coenzyme / metabolic cofactor
Injectable nicotinamide adenine dinucleotide - an essential coenzyme for cellular energy and DNA repair - given IV or subcutaneously.
Melanocortin receptor agonist
A synthetic cyclic peptide that increases sexual desire/arousal by acting on the brain rather than blood flow.
Plain-language updates on new research and the shifting rules. No hype, unsubscribe anytime.