What are the uses of Melanotan I?

Photoprotection in erythropoietic protoporphyria (approved use). Cosmetic skin tanning (research/off-label). Reducing UV-related skin damage

Cosmetic PeptidesPrescription Only

Melanotan I

Also known as: Afamelanotide, MT-1, Scenesse

Selective tanning peptide — the pigmentation-focused cousin of Melanotan II, approved in an implant form for a rare light-sensitivity disorder.

Subcutaneous implant (approved) Subcutaneous injection (research)

Cosmetic Peptides

Melanotan I

Subcutaneous implant (approved)Prescription Only

The approved implant (Scenesse) is prescription-only for EPP. Cosmetic research-market use is unapproved and unmonitored.

Overview

Melanotan I (afamelanotide) is a linear alpha-MSH analog that stimulates melanin production. Unlike Melanotan II, it is more selective for pigmentation with fewer libido and appetite effects. Its implant form, Scenesse, is approved for erythropoietic protoporphyria (EPP), a rare condition causing severe light sensitivity.

Melanotan I (afamelanotide) is the more selective, pigmentation-focused cousin of Melanotan II. It is a linear alpha-MSH analog that acts primarily at the MC1R receptor on melanocytes, so it drives tanning with far fewer of the libido, appetite, and nausea effects that come with Melanotan II. This cleaner profile is exactly why it made it through formal drug development where Melanotan II did not.

In its clinician-administered implant form (Scenesse), afamelanotide is FDA- and EMA-approved to increase pain-free light exposure in adults with erythropoietic protoporphyria (EPP), a rare disorder in which sunlight causes severe pain. The photoprotection it provides is largely independent of UV, since it raises baseline melanin directly. Cosmetic use of injectable research-market Melanotan I is unapproved and lacks the controlled safety data of the implant, though it is generally reported as milder and more predictable than Melanotan II.

Mechanism of Action

Agonist at the MC1R melanocortin receptor on melanocytes, increasing eumelanin synthesis and providing photoprotection largely independent of UV exposure.

Use Cases

✓Photoprotection in erythropoietic protoporphyria (approved use)
✓Cosmetic skin tanning (research/off-label)
✓Reducing UV-related skin damage

Research Summary

Afamelanotide (Scenesse) is FDA- and EMA-approved as a subcutaneous implant for EPP. Cosmetic use of the injectable research form is unapproved and lacks controlled safety data.

Explain It Like I'm 5 Years Old

This is the gentler tanning helper. Like its stronger cousin, it tells your skin to make more of its natural brown color so the sun does not hurt you as much — but it mostly sticks to just tanning, without messing with hunger or other things in your body as much. Doctors even use an approved version to protect people whose skin is badly hurt by sunlight.

How the Gym Bros Are Using It

For guys who want the tan without the Melanotan II side effects. It is the pigmentation half of the melanotan story with far less nausea and no strong libido or appetite hit. Physique competitors sometimes prefer it for a controllable, even stage tan. Keep in mind the injectable research form is not the same as the approved medical implant, and it is still cosmetic-only — not something that helps you train, recover, or grow.