Kisspeptin-10

Kisspeptin-10 is a truncated form of the kisspeptin peptide that plays a central role in regulating the reproductive hormone axis. Discovered relatively recently (the KISS1 gene was identified in 1996), kisspeptin was found to be essential for puberty initiation and fertility. It works at the top of the hormonal cascade, stimulating GnRH (gonadotropin-releasing hormone) neurons in the hypothalamus, which then trigger LH and FSH release from the pituitary, ultimately increasing testosterone or estrogen production. This 'master switch' role makes kisspeptin-10 interesting for fertility treatments, testosterone optimization, and as a potential alternative to hCG in post-cycle therapy. Unlike direct testosterone or hCG, kisspeptin works through your body's natural regulatory systems from the top down.