Kisspeptin-54: Master Regulator of Reproductive Hormone Release
54-residue peptide from the KISS1 gene that drives GnRH release. Investigational for IVF ovulation trigger, hypothalamic amenorrhoea and fertility disorders.
Hormonal & Reproductive Peptides
Peptides acting on reproductive and neurohormonal axes: Kisspeptin-10 and -54 regulate GnRH and fertility; intranasal oxytocin is studied for social cognition and obstetrics. Clinical research tools more than approved therapeutics for most indications.
Peptides in this category
Kisspeptin-10
The active decapeptide fragment of the KISS1 gene — a genuine central regulator of human reproduction with published clinical pharmacology and a large animal literature
Intranasal Oxytocin: Investigational Social-Cognition Peptide
Intranasal formulation of oxytocin studied for autism, social anxiety, bonding and other psychiatric indications. Intravenous oxytocin is approved for labour but intranasal is investigational.
PT-141 (Bremelanotide / Vyleesi): MC4R Agonist for Female Sexual Desire
FDA-approved as-needed subcutaneous peptide for pre-menopausal hypoactive sexual desire disorder.
Melanotan II: Non-Selective Melanocortin Agonist
Synthetic cyclic analogue of α-MSH developed as a UV-free tanning agent and precursor to PT-141. Never approved; widely sold illicitly.