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 .
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.
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!