I started taking it a few weeks ago to cure the remnants of mild eczema - itchy shin. Haven't noticed any benefit from it so far. But then I am trying so many things at the same time I might not know what fixed it, even if I am able to cure it.
I take it for arthritis (I'm 30). My hips and lower back used to hurt every morning and my hips were stiff when I got out of bed. I used to hobble to the restroom and slowly loosen up over an hour or more. Now I can pop out of bed - my body doesn't hurt when I wake up now.
A side benefit has been nail growth - I went to dinner with friends Saturday and they all wanted to know my secret. Hair growth has been fast too.
Remember to take MSM with vitamin C. It activates the supplement.