Peptides & Peptide Hormones
Semaglutide
Semaglutide is classified here as glp-1 receptor agonist peptide. Evidence level: High — multiple phase 3 trials and approved indications.
AOD-9604
AOD-9604 is classified here as modified growth-hormone fragment. Evidence level: Clinical development history but limited evidence for current fitness claims.
Tirzepatide
Tirzepatide is classified here as dual gip/glp-1 receptor agonist peptide. Evidence level: High — phase 3 obesity/diabetes programs and approved indications.
Kisspeptin
Kisspeptin is classified here as hypothalamic reproductive neuropeptide. Evidence level: Human endocrine and fertility research.
Retatrutide
Retatrutide is an investigational triple receptor agonist with substantial weight-loss effects in phase 2 research and ongoing later-stage development.
Bremelanotide (PT-141)
Bremelanotide (PT-141) is classified here as melanocortin receptor agonist peptide. Evidence level: High for its approved indication; not a performance drug.