Oh forgot to mention I have been taking around 10000 to 20,000 MG of MSM every day I live in toronto and get a bottle of 300 1000mg pills at a place on spadina near dundas in Chinatown.. Best price I have seen. I feel like it has helped my PH and also has improved my health overall. The die-off I got from it was crazy at first though so ramp yourself up slowly to avoid bad die-off.