Independent education resourceInformation here does not replace care from a qualified health professional.
Peptide Therapy GuideClear peptide education

Understand the source comparison

Comparison at a glance

PT-141 (bremelanotide) Low sexual desire and related distress in premenopausal women (HSDD); erectile response in men Strong human clinical — FDA-approved for one specific indication Effect size is modest; approved only for premenopausal women with HSDD; nause

No winner is assigned.

This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.

  • PT-141 (bremelanotide)
  • Low sexual desire and related distress in premenopausal women (HSDD); erectile response in men
  • Strong human clinical — FDA-approved for one specific indication
  • Effect size is modest; approved only for premenopausal women with HSDD; nausea/flushing common
  • Kisspeptin
  • Sexual brain processing, arousal and penile tumescence in men and women with low desire
  • Early human clinical — small, mechanistic proof-of-concept trials
  • Tiny single-centre studies using IV infusion; no approved product; long-term efficacy unproven
  • Melanotan II
  • Initiating erections and raising sexual desire in men with erectile dysfunction
  • Limited older human data — small trials, largely superseded by PT-141
  • Very small samples; frequent nausea; unregulated, with separate safety concerns
  • Oxytocin
  • Orgasm intensity, contentment, partner bonding; vaginal/postmenopausal sexual function
  • Mixed / weak human data
  • Trials are inconsistent; benefits may not be on desire itself and can reflect other mechanisms