MSM is all natural and perfectly safe. They sell it in health food stores by me. It worked to regrow my hair and it has a million other uses too. My mom takes it as an anti inflammatory for her joint pain. The brand I bought was NOW and it was powder form that I'd mix in water. Research all it's benefits. I highly recommend!
Its not topical its pill form but its provably the same either way right? And man I don't know why people would say to take it for hair loss. I've read on other sites that it can help hair loss but I think its bad to use it for the wrong reason and could do harm to your body.
Methylsulfonylmethan may be a harsh chemical. It is better not to put any harsh chemical on face or hair. In the long run it will be harmful. Research natural source .