MT-1 (Melanotan I) vs MT-2 (Melanotan II)
MT-1 vs MT-2 for tanning: side effect profile, libido effects, FDA status, and which is gentler.
The verdict
MT-1 is the more selective, cleaner option: it drives pigmentation with fewer of the extra effects people complain about. MT-2 tans harder and faster but is less selective, so it also hits libido and tends to bring rougher side effects like nausea and the libido spike. If you mainly want color with the least baggage, MT-1 is the gentler pick. People reach for MT-2 when they want the strongest pigment response and accept the messier profile that comes with it.
MT-1 mimics a hormone your body uses to make pigment in your skin. With sun or tanning-bed exposure, it gives you a darker tan from much less UV time. Cleaner side effect profile than the more popular MT-2.
MT-2 is the more potent (and rougher) sibling of MT-1. Stronger pigmentation but harder side effect profile, including unwanted libido effects. Most people who tried MT-2 first migrate to MT-1 for cleaner results.
Which one should you pick?
Pick MT-1 (Melanotan I) if light-skinned users wanting baseline tan with less uv time or people who tried mt-2 and didn't tolerate the libido / nausea hit.
Pick MT-2 (Melanotan II) if users wanting deeper pigmentation than mt-1 delivers or people who specifically want the libido side effect.
Still torn between MT-1 (Melanotan I) and MT-2 (Melanotan II)?
The AI Coach reads both, asks about your goal and experience, and tells you which one actually fits — plus how to dose and stack it. Free.