PT-141 (Bremelanotid)

FDA-approved (Vyleesi, 2019) CNS melanocortin receptor agonist. Acts via MC3R/MC4R in hypothalamus — not peripherally. Effective in PDE5 non-responders. [...]

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Oxytocin

Nonapeptide governing social bonding, trust, pair bonding, arousal, and reproductive function. Primary research tool for social neuroscience, ASD, PTSD, and attachment biology. [...]

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Melanotan II

Non-selective melanocortin receptor agonist (MC1R–MC5R). Precursor to PT-141 (bremelanotide). Promotes melanogenesis, sexual arousal, and appetite suppression. Extensive preclinical and human data. [...]

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