Methyl-5AA converts to mestanolone, since most people have never used this drug let alone regular DHT and for advertising with other products I think it was compared to being similar to masteron (or the Ph for masteron). Which probably isnt a terrible comparison . Something great for strength, great for focus, should go real well precontest or on strict dieting while being a heavy androgen.
Ive used both halo and masteron, halo gave me crazy headaches, this dosent, and masteron although got my muscles hard they didnt get it as hard as M5AA does. But there is a better chance of hairloss with M5AA.