Melanotan 1 vs Matrixyl
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticSexual Health & Libido
Melanotan 1Skin & Cosmetic
Matrixyl- Summary
- Melanotan 1 (Afamelanotide) is a synthetic analog of α-MSH that selectively stimulates melanogenesis (tanning) through MC1R activation. It provides UV-independent skin pigmentation and is FDA/EMA-approved under the name SCENESSE for erythropoietic protoporphyria (EPP) and vitiligo.
- Matrixyl is the most widely used collagen-stimulating cosmetic peptide. As a matrikine — a fragment of type I procollagen — it signals skin cells to synthesize new collagen, elastin, and fibronectin, reducing wrinkle depth and improving skin firmness and elasticity.
- Half-Life
- ~40–60 minutes (free peptide); implant formulation (SCENESSE) releases over months
- N/A — topical; sustained signaling effects on fibroblasts persist beyond single application
- Admin Route
- SubQ
- Topical
- Research
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- Typical Dose
- 0.5–1 mg
- 3–8% concentration
- Frequency
- Daily until desired color achieved, then maintenance
- Once or twice daily
- Key Benefits
- Induces skin pigmentation/tanning without UV exposure
- Provides photoprotection in photosensitivity conditions (EPP)
- FDA-approved for erythropoietic protoporphyria (SCENESSE)
- Approved in EU for EPP treatment
- Anti-inflammatory via MC1R
- Mild libido enhancement
- Potential skin cancer prevention through melanin protection
- Stimulates collagen I, III, and IV synthesis
- Increases fibronectin and glycosaminoglycan production
- Reduces wrinkle depth and length by 27–68% (studies)
- Improves skin firmness and elasticity
- Reduces dark circles and undereye bags
- Synergistic with retinol, vitamin C, and growth factors
- Suitable for all skin types including sensitive
- Well-studied with published clinical data
- Side Effects
- Nausea (especially at higher doses)
- Facial flushing
- Fatigue
- Injection site reactions
- +3 more
- Exceptional safety profile
- Non-irritating, suitable for sensitive skin
- No known adverse effects at cosmetic concentrations
- Stacks With
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