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Skin & Pigmentation

Melanotan II for Libido: What the Research Says

Limited/early research; not an approved product.Updated August 2026

Melanotan II (also known as MT-II, MT2) is a melanocortin agonist studied for skin pigmentation. This page covers what the published research does — and does not — establish about it in relation to libido and sexual health.

An honest caveat first

Melanotan II is discussed in the context of libido and sexual health because of its mechanism, not because the literature studies it for that outcome directly. The research we can point to covers Skin pigmentation, Melanocortin pathway studies. Treat any claim beyond that with scepticism.

Research status: Limited/early research; not an approved product.

How Melanotan II is thought to work

Melanotan II is a synthetic analog of α-MSH that stimulates melanocytes to produce more melanin, driving skin pigmentation. Because it is a broad melanocortin agonist, it also interacts with appetite and sexual-function pathways.

What it does not establish

Unregulated use raises safety concerns, including effects on moles and blood pressure. Not medically approved.

Nothing on this page is a recommendation to use Melanotan II, and Selpho publishes no dosing, reconstitution or sourcing information. Read how we decide what goes in the library.

Other peptides researched for Libido

A melanocortin agonist approved for certain forms of low sexual desire.

A hypothalamic peptide studied for its role in reproductive hormone signaling.

A synthetic form of GnRH used to stimulate pituitary hormone release.

Frequently asked questions

Not directly. Melanotan II is discussed in the context of libido and sexual health because of its mechanism, but the research we can point to studies it for skin pigmentation, melanocortin pathway studies rather than for this outcome specifically. Limited/early research; not an approved product. Selpho does not provide dosing or medical advice.

Limited/early research; not an approved product.

Unregulated use raises safety concerns, including effects on moles and blood pressure. Not medically approved. Always speak to a licensed healthcare professional before considering any peptide.

It is studied mainly for skin pigmentation (tanning) and melanocortin-pathway effects. It is not a medically approved product.

Unregulated use raises safety concerns, including changes to moles and effects on blood pressure and nausea. It is not medically approved.

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This page is for educational purposes only and is not medical advice, a diagnosis, or a recommendation to use any compound. It contains no dosing or purchase information. Always consult a licensed healthcare professional before considering any peptide.