MT1 VS MT2
Melanotan I VS Melanotan II
Melanotan was developed in the University of Arizona way back in 1981 and the news was very exciting that a new wonder tanning drug has been invented. Melanotan is actually a synthetic hormone that mimics the action of MSH or melanocyte stimulating hormone. Melanotan II is another analog of melanocyte stimulating hormone developed at the same University. Both MT and MT II are said to produce the effect of naturally produced melanocyte within pituitary gland in our bodies.
While Melanotan is a straight, full length peptide, Melanotan II is a shortened, circular version of the afamelanotide peptide. While both Melanotan and Melanotan II have a tanning effect, there are some more side effects reported by users of MT II. Libido enhancement and spontaneous erections are surprising side effects of MT II that have been reported by the users.
MT causes tanning without any side effects and hence it is considered to better of the two peptides. But because the amino acid sequence is shorter in MT II, there are more MT II peptide chains available as compared to MT. Another major difference between MT and MT II is that MT II is cheaper than MT and this lures people to go for it rather than MT.