What is Melanotan I?
(commonly called Melanotan I / MT1) is a synthetic analogue of α-MSH (alpha-melanocyte-stimulating hormone) designed to stimulate skin pigmentation.
It was developed to increase melanin production with more controlled receptor activity than MT2.
MT1 vs MT2 (key difference)
- MT1 (Afamelanotide) → more selective for MC1R (skin pigmentation pathway)
- MT2 → affects multiple melanocortin receptors (MC1R, MC3R, MC4R, MC5R)
👉 That means:
- MT1 = more focused on tanning / pigmentation
- MT2 = broader effects (appetite, libido, nausea side effects, etc.)
What it’s studied for
MT1 (Afamelanotide) has been researched for:
Skin pigmentation
- Increases eumelanin (dark pigment)
- Used to study “sunless tanning” pathways
Light sensitivity disorders
- Most clinically relevant research use is for photoprotection conditions
UV protection
- Studied for reducing UV damage in high-risk patients
Regulatory reality (important)
Unlike most peptides in the “tanning peptide” category:
- is actually FDA-approved in a medical form (Scenesse) for a rare condition involving light sensitivity
- However:
- That does NOT mean MT1 “research vials” are approved supplements
- DIY “10mg MT1” products are still unregulated research chemicals
What “10mg MT1” listings usually are
When you see:
👉 “Melanotan 1 (MT1) 10mg”
it typically refers to:
- A lyophilized peptide vial (freeze-dried powder)
- Intended for lab research
- Not a standardized consumer product
These are commonly marketed similarly to MT2, but:
- Quality varies widely
- No consistent dosing standards exist outside clinical settings
Risks and concerns
Even though MT1 is “closer” to a medical compound than MT2:
- ❌ No approved cosmetic tanning use
- ❌ No regulated self-administration protocols
- ❌ Unregulated online supply chain
- ⚠️ Potential pigment changes are unpredictable outside clinical use
Why people search for it
Interest is driven by:
- “Safer alternative to MT2” claims
- Sunless tanning trends
- Comparison with Melanotan II
- Biohacking and aesthetic communities
Important takeaway
(Melanotan I) is a melanocortin-based pigment-stimulating peptide with real clinical research use in light-sensitivity disorders, but “10mg MT1” products sold online are still unregulated research materials—not approved tanning products or supplements.
