Selective melanocortin agonist for tanning and photoprotection with a milder side-effect profile than MT-II.
Melanotan I (afamelanotide) is a more selective melanocortin agonist than Melanotan II, favoring the MC1R receptor responsible for pigmentation. That selectivity gives it a milder side-effect profile — less nausea and far fewer of the libido/erection effects.
Crucially, it is an approved drug: marketed as Scenesse, it is approved in the US and EU to prevent phototoxicity in erythropoietic protoporphyria (EPP), a rare condition of extreme light sensitivity, where it is delivered as a clinical implant.
For tanning and photoprotection it is the gentler, better-characterized melanotan, though it still darkens moles and does not replace sunscreen.
Stimulates pigmentation with a milder side-effect profile than MT-II.
Approved (Scenesse) for EPP; pigmentation effect well established
Clinically approved to reduce phototoxic reactions in EPP.
Regulatory approval based on clinical trials
Adds pigment-based protection, but is not a sunscreen replacement.
Supported, with the caveat that UV protection is partial
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Promising but early. Strong animal data and/or small/preliminary human studies, not yet confirmed in robust trials.
Men wanting tanning/photoprotection with fewer side effects than MT-II
Milder than Melanotan II but still darkens moles. Keep using sun protection. The more clinically grounded melanotan.
Women seeking a gentler tanning/photoprotection option
Fewer libido/nausea effects than MT-II. Monitor moles and continue sunscreen. Avoid in pregnancy.
Fewer libido/nausea effects than MT-II. Avoid in pregnancy.
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Have moles assessed before use; monitor for changes.
Milder than Melanotan II but still darkens moles/freckles.
Use sun protection — tanning does not eliminate UV risk.
Standardized data for Melanotan I (Afamelanotide) is limited. These are the general effects to watch for with this type of compound.
Rotate sites, use sterile technique, let alcohol dry before injecting.
Hydrate and ease the dose; usually transient as your body adjusts.
Individual responses vary. Stop and consult a clinician for severe, persistent, or unexpected reactions.
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