MSM does strengthen hair so it can grow more and break less.
Five years ago I was using MSM regularly for hair growth.
Here is a look at my hair now and an update on hair growth products that helped me achieve stronger strands.
I use Hairfinity. I have used 7 Lights Sulfur Defense 99.9% Methylsulfonylmethane which is a pure food-grade crystal MSM.
Please watch: "Dave Ramsey Almost Ruined My Life? How to Have a Life On the Baby Steps!"