Sexual Health
Peptides researched for libido enhancement, sexual arousal, hormonal balance, and reproductive support. Each compound links to its full dosing protocol.
Research Use Only. All dosing information is for educational purposes. Consult a licensed healthcare provider before making health decisions.
PT-141 (Bremelanotide)
Melanocortin receptor agonist that acts on the central nervous system to increase sexual arousal and desire. FDA-approved as Vyleesi for hypoactive sexual desire disorder in women.
Route: Subcutaneous injection
Reconstitution: 3.0 mL bacteriostatic water → ~3.33 mg/mL concentration
Dose Range: 500–1500 mcg once daily (gradual titration over 16 weeks)
Schedule: Weeks 1–8: 500 mcg → Weeks 9–12: 1000 mcg → Weeks 13–16: 1500 mcg
- Puberty and adolescent sexuality — Horm Behav, 2013
- Flibanserin and its discontents — Arch Womens Ment Health, 2017
- Bremelanotide: New Drug Approved for Treating Hypoactive Sexual Desire Disorder — Ann Pharmacother, 2020
Melanotan 2
Non-selective melanocortin agonist with effects on skin pigmentation and sexual function. Researched for pro-erectile effects and libido enhancement as a secondary mechanism.
Route: Subcutaneous injection
Reconstitution: 3.0 mL bacteriostatic water → 3.33 mg/mL concentration
Dose Range: 250–1000 mcg once daily (gradual titration over 8–12 weeks)
Cycle: 6–8 weeks for initial tanning, then switch to maintenance dosing
Schedule: Week 1: 250 mcg → Week 2: 500 mcg → Week 3: 750 mcg → Weeks 4–8: 1000 mcg
- Is homophobia associated with homosexual arousal? — J Abnorm Psychol, 1996
- Natural aphrodisiacs — J Sex Med, 2010
- Erectile dysfunction — Adv Psychosom Med, 2008
Kisspeptin
Master regulator of the reproductive hormone cascade that stimulates GnRH release. Researched for its role in puberty, fertility, and sexual arousal through hypothalamic pathways.
Route: Subcutaneous injection
Reconstitution: 3.0 mL bacteriostatic water → ~3.33 mg/mL concentration
Dose Range: 100–200 mcg once daily (gradual titration)
Cycle: 8–12 weeks; avoid prolonged continuous use to prevent tachyphylaxis
Schedule: Weeks 1–2: 100 mcg 3
- Elevated prenatal anti-Müllerian hormone reprograms the fetus and induces polycystic ovary syndrome in adulthood — Nat Med, 2018
- Kisspeptin and fertility — J Endocrinol, 2011
- Adenomyosis and fertility outcomes — Gynecol Endocrinol, 2020
Oxytocin
Neuropeptide involved in bonding, trust, and social behavior. Researched for enhancing sexual arousal, orgasm intensity, and emotional intimacy between partners.
Route: Subcutaneous injection
Reconstitution: 3.0 mL bacteriostatic water → ~1.67 mg/mL concentration
Dose Range: 100–500 mcg once daily subcutaneous (gradual titration)
Cycle: 8–12 weeks; optional extension to 16 weeks
Schedule: Weeks 1–2: 100 mcg 6 → Weeks 3–4: 200 mcg 12 → Weeks 5–6: 300 mcg 18 → Weeks 7–8: 400 mcg 24
- Oxytocin, Erectile Function and Sexual Behavior: Last Discoveries and Possible Advances — Int J Mol Sci, 2021
- Non-REM Sleep Parasomnias — Continuum (Minneap Minn), 2023
- Oxytocin and appetite — Prog Brain Res, 2008
HCG
Mimics luteinizing hormone to stimulate testosterone production in the testes. Used to maintain testicular function during hormone therapy and support natural testosterone levels.
Route: Subcutaneous injection
Reconstitution: 2.0 mL bacteriostatic water → 2,500 IU/mL concentration
Cycle: 8–12 weeks typical; extend to 16+ weeks for severe suppression cases
- Micropenis — Indian J Pediatr, 2023
- Paediatric and adult-onset male hypogonadism — Nat Rev Dis Primers, 2019
- APHRODITE criteria: addressing male patients with hypogonadism and/or infertility owing to altered idiopathic testicular function — Reprod Biomed Online, 2024
All information is intended strictly for educational and research purposes. Not medical advice. Consult a licensed healthcare provider before making any health decisions.