May ease knee-osteoarthritis pain and improve function in small, short studies; reliable long-term benefits remain uncertain.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Lithothamnion CalcareaFiller
Calcified red seaweed used as a whole-food tablet base and natural calcium/magnesium source (common in food-based multivitamin lines)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Methyl Sulphonyl Methane
Not reviewed yet
On the label
Take 1-6 tablets (children over 8 years, 1 tablet) a day, with meals, building gradually, or as your health professional advises.
No price yet
What 66 MSM supplements cost
Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.
Not medical advice. Consult your healthcare professional.