Up to now minoxidl, Propecia (spironolactone for those who are risk averse) and nizarol have all been considered as a must for people with hairloss or thinning hair. MSM has up to now been ignored by most, but it seems to do wonders for the hair. Everyone who takes the product have attributed positive comments and, I have personally been taking it for a month now, and my hair has significantly thickened up in the last week or so and seems to have grown longer quicker in that time than is normally the case. Now you may say it is a coincidence, but I don't think it is because my vellous hairs along the hairline have suddenly started getting longer and pigmenting (they were there for months without really darkening). It may be a coincidence as I have also now been on minoxidl and nizarol for 7 months, but it is more likely that msm is helping speed up the process of regrowth and thickening of minoxidil. I would advise anyone with hair loss to get on msm and take at least 2000mg a day.