I'll share my intense experience with MSM and you can draw your own conclusions to its abilities.
I took it for inflamed tendons. I had lost all use of my right arm for a year, had acupuncture, used green clay, etc. My then boyfriend, now husband, came home from the athletic club one night and said, "Here, try this." It was MSM that his gay massage therapist who does cross country horse racing (I always have to give this background) let him have some for me to try. I was skeptical but tried it anyway. Within three days, I could tell a difference.
MSM goes where it is needed!
I had been taking MSM for a couple of months and sometimes I would forget to take it. My hand's vascular system was impaired and would get very cold, no circulation, but it would become toasty warm after just 10 minutes of taking MSM and I mean very warm. I was only taking 1/4 tsp/day. My hand is healed now.
After one year's time, I noticed other benefits, no depression, varicose veins didn't hurt, no hypoglycemia, healthy skin and hair (my hair had always been thin and straggly), no sensitive teeth. increase in creativity, relieved acid reflux (in boyfriend) sun protection, softened sore and hard muscles from manual work (topical use), no more frigid feet.
I am a walking testament for MSM and lyme. It might have a different affect on you but you can't know unless you try. It fixed everything that was wrong with me at the time but it took a year before I noticed some of the changes.