What is Melanotan II?
is a synthetic peptide analog of α-MSH (alpha-melanocyte-stimulating hormone).
It works by activating melanocortin receptors, which affect:
- Skin pigmentation (melanin production)
- UV response in skin
- Appetite regulation
- Sexual arousal pathways
It was originally researched as a potential tanning agent but was never approved as a mainstream drug.
What “3mg × 10 vials (30mg total)” means
A listing like:
👉 Melanotan 2 (3mg × 10 vials = 30mg)
usually means:
- 10 separate small vials
- Each vial contains 3mg freeze-dried peptide
- Total batch = 30mg combined
These are typically:
- Lyophilized (freeze-dried) research vials
- Reconstituted in liquid before lab use
- Sold as “research use only” compounds
What it’s studied for
In research and discussion contexts, MT2 is associated with:
Skin pigmentation
- Increases melanin production
- Can darken skin tone without as much UV exposure
UV response
- Studied for possible reduction in sunburn sensitivity
Appetite effects
- May suppress appetite in some studies
Sexual function pathways
- Acts on melanocortin receptors involved in libido signaling
Important reality check
Even though it’s widely sold online:
- ❌ Not FDA-approved
- ❌ Not approved in EU/UK for cosmetic or medical use
- ❌ Not a dietary supplement
- ✔ Classified as a research chemical
It is often explicitly labeled:
“For research use only. Not for human consumption.”
Safety concerns
Melanotan II is controversial because:
- Side effects include nausea, flushing, and appetite suppression
- Can darken moles and freckles unpredictably
- Potential concerns around long-term pigmentation changes
- Quality varies widely between unregulated suppliers
Why it’s popular
Search demand comes from:
- “Tanning without sun” interest
- Fitness and aesthetic communities
- Biohacking trends
- Social media marketing claims
Key takeaway
is a research peptide that affects pigmentation and melanocortin signaling, and “3mg × 10 vials” products are unregulated laboratory materials—not approved or standardized cosmetic or medical products.






