it does nothing
a year and a half ago ive bought 1 kg of msm powder, took it for a while, didnt see anything..
the best it might do is make the hair thicker, but that just applies for non balding hair.. hair thats miniaturized due to male pattern baldness will stay thin and it wont do a thing for it..
now im left with still a ton of that stuff so i add it to my shampoo and soap.. still i dont think its doing anything.