PT 141 Side Effects: What You Need to Know Before Starting Melanotan II is a peptide that supports melanin production meaning your glow can start from the inside out (without living out in the sun or tanning beds). Our WCC nurses Melanotan 2 doesnt just stimulate melanin in your skin, but your hair follicles aswell .. my beard is about 80% darker today, than a month before I started taking melanotan. Guys with premature Melanotan II: Tanning injections, nasal sprays harmful to health