Best Peptides for Sexual Health

Kisspeptin-10 is a truncated bioactive fragment of the kisspeptin family of peptides, which are the master regulators of reproductive hormone release. It activates the KISS1R receptor on GnRH neurons in the hypothalamus, triggering a potent surge of gonadotropin-releasing hormone and downstream LH/FSH secretion. It is studied for fertility, hypogonadism, and sexual health applications.

Oxytocin is a naturally occurring neuropeptide produced in the hypothalamus and released by the posterior pituitary gland. Known as the 'bonding hormone,' it plays critical roles in social attachment, trust, empathy, and pair bonding. It also has well-established roles in labor induction, lactation, and stress regulation. Intranasal oxytocin is being actively researched for autism spectrum disorder, social anxiety, PTSD, and depression.

PT-141 (bremelanotide) is a synthetic melanocortin peptide and the only FDA-approved on-demand treatment for hypoactive sexual desire disorder (HSDD) in premenopausal women, marketed as Vyleesi. Originally derived from Melanotan-2 during clinical development, PT-141 was the first centrally-acting sexual dysfunction drug — it works in the brain rather than on peripheral blood flow, making it effective for desire-based dysfunction rather than purely mechanical arousal problems. It activates melanocortin-4 receptors (MC4R) in the hypothalamus to increase sexual desire and arousal in both men and women.