I started taking it for joints (had a bum shoulder), skin and hair.
Started 1 capsule of 1,000 mg in the morning. Second day took 2.
Bottle mentioned therapeutic dose was 4 capsules. Day 3 I took 4.
Also had used 2 different skin lotions at the time on my face. My face sometimes reacts to serums and lotions.
Day 5 my face was reddened with several round red raised areas. They were only mildly itchy, at most. They turned into raised eczema patches which have persisted for 3 weeks now.
I wasn't sure if it was lotions or msm. Searched online but didn't see anything that said that msm could CAUSE a reaction. In fact, many sites mentioned that it was a treatment for eczema.
I couldn't see an ingredient that was unusual in the lotions. I searched again and came across this site. Now I'm certain. Thank you!