Melanotan 1 vs Spermidine
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticSexual Health & Libido
Melanotan 1Anti-Aging & LongevityCognitive Enhancement
Spermidine- 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.
- Spermidine is a naturally occurring polyamine found in all living cells, with exceptionally high concentrations in wheat germ, aged cheese, and human sperm. It is the most studied autophagy-inducing dietary compound, shown to extend lifespan across multiple species and reduce cardiovascular and cognitive aging.
- Half-Life
- ~40–60 minutes (free peptide); implant formulation (SCENESSE) releases over months
- ~30–60 minutes, but gut bacteria produce it continuously; supplementation raises tissue levels over weeks
- Admin Route
- SubQ
- Oral
- Research
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- Typical Dose
- 0.5–1 mg
- 1–5 mg
- Frequency
- Daily until desired color achieved, then maintenance
- Once 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
- Induces autophagy — cellular self-cleaning
- Extends lifespan in yeast, flies, worms, and mice
- Reduces cardiovascular aging and arterial stiffness
- Reduces all-cause mortality (human epidemiological data)
- Neuroprotective: reduces amyloid and tau pathology
- Promotes hair growth (anagen phase activation)
- Reduces age-related immune decline
- Improves memory in aging models
- Side Effects
- Nausea (especially at higher doses)
- Facial flushing
- Fatigue
- Injection site reactions
- +3 more
- Generally very well tolerated
- Rare: mild GI discomfort at high doses
- May temporarily reduce some gut bacteria species
- Rare: headache at initiation
- Stacks With
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