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Melanotan I

Also known as Afamelanotide · SCENESSE · NDP-MSH

FDA-approved MC1R agonist (SCENESSE implant) for erythropoietic protoporphyria. Prescription only.

Tier Amedium riskadvancedRx Only
Tier A
Evidence
Protocol
medium
Risk
subcut.
Route

Prescription Only

This is an FDA-approved prescription product. It should only be obtained through licensed healthcare providers and pharmacies. Do not attempt to source through RUO or gray-market channels.

Evidence visual

Melanotan I evidence and risk matrix

advanced researcher fit

Evidence

Tier A

Risk

medium

Regulatory

rx approved

WADA

unknown

FDA

none

Route

subcutaneous implant

Higher-confidence evidence profile, but regulatory and sourcing checks still matter.

Overview

Melanotan I is commonly equated with afamelanotide, the active ingredient in SCENESSE — an FDA-approved subcutaneous implant for adults with erythropoietic protoporphyria (EPP). It acts primarily on MC1R, increasing eumelanin production independent of UV exposure. The approved dose is a 16 mg implant every 2 months. Label warns about hypersensitivity and skin monitoring for pigmented lesions. Cosmetic tanning is not the approved context.

Decision path

Where Melanotan I fits in the research path.

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Research Details

Mechanism of Action

Melanocortin receptor agonist binding predominantly MC1R; increases eumelanin production independent of UV exposure.

Administration Routes

subcutaneous implant

Study Dose Range

SCENESSE label: 16 mg subcutaneous implant every 2 months.

Expected Effects

Phototoxicity reduction in EPP (evidence-backed). Cosmetic tanning is not the approved use.

Dosing Timeline

Controlled-release kinetics; plasma concentrations up to ~96 hours in most subjects.

Contraindications

Hypersensitivity to afamelanotide (per label).

Adverse Effects

Hypersensitivity, implant site reactions, pigment changes, monitoring for pigmented lesions.

Interaction Notes

No drug interaction studies were conducted (per label).

Cost at a glance

No reliable cycle cost estimate yet. We need cleaner listing price and pack-size data before showing a trustworthy number.

Known Interactions

Caution

PT-141

Melanocortin agonist overlap; conservative caution.

Caution

Melanotan II

Melanocortin agonist overlap; conservative caution.

Frequently Compared

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LL-37

Tier B-C

KPV

Tier C

Information provided for educational and research reference only. Not medical advice. Not for diagnosing, treating, curing, or preventing disease. Products referenced are labeled Research Use Only (RUO) by vendors; not for human or veterinary use.

Sources and review notes

  1. Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks - U.S. Food and Drug Administration - accessed 2026-05-15

    Used for FDA compounding-risk context and peptide safety flags.

  2. The Prohibited List - World Anti-Doping Agency - accessed 2026-05-15

    Used for athlete-facing WADA risk and peptide-class restrictions.

  3. Peptide therapeutics: current status and future directions - PubMed / Nature Reviews Drug Discovery - accessed 2026-05-15

    Used for broad peptide-therapeutics background and evidence framing.

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