Peptides studied for sex hormones and fertility

Testosterone, LH and FSH, fertility and sexual desire. 5 peptides, each with what researchers tested, its proof grade and its dose range.

"Studied for" means what researchers tested. It does not mean it works, or that it is safe or right for anyone. Check the proof grade: many of these were only tested in animals.

GonadorelinGnRH, LHRH, Factrel, Lutrepulse, KryptocurSmall human studiesSex hormones and fertilityFertility. It triggers LH and FSH. Human studies helped restart periods and sperm making.Common use: 100 mcg to 300 mcg per doseHCGHuman chorionic gonadotropin, chorionic gonadotropin, Pregnyl, NovarelHuman trialsSex hormones and fertilityFertility and testosterone. An approved drug. Human studies raised testosterone inside the testes.Common use: 250 IU to 4,000 IU per doseKisspeptin-10Metastin 45-54Small human studiesSex hormones and fertilityTurning on the hormones that run fertility (LH and FSH). Human studies in men and women.Common use: 100 mcg to 200 mcg per dosePT-141BremelanotideHuman trialsSex hormones and fertilityLow sexual desire. An approved drug for women (bremelanotide). Also tested for erections in men.Common use: 500 mcg to 2 mg per doseOxytocinPitocin, SyntocinonHuman trialsBrain, mood and sleepSex hormones and fertilitySocial behavior, including in autism and Prader-Willi syndrome. Large human trials mostly found no effect.Common use: 100 mcg to 400 mcg per dose

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