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PT-141 (Bremelanotide): The Melanocortin That Targets Desire, Not Plumbing Sexual health
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PT-141 (Bremelanotide): The Melanocortin That Targets Desire, Not Plumbing

An FDA-approved cyclic peptide that acts in the brain rather than the blood vessels: a narrow indication, a modest effect, and a melanocortin tax of nausea and pigment.

Jun 2026 · 6 min read
Melanocortins: From Vyleesi to Melanotan II Sexual health

Melanocortins: From Vyleesi to Melanotan II

Tanning and arousal run through the same family of receptors. That single fact explains both Melanotan II’s appeal and its downfall — and why…

Jun 2026 · 6 min read
What Is Melanotan II? The Tanning Peptide With a Cautionary Medical Record Sexual health

What Is Melanotan II? The Tanning Peptide With a Cautionary Medical Record

Melanotan II began as a clever idea for sunless photoprotection and became one of the most notorious peptides on the gray market. Its own…

Jun 2026 · 6 min read

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