MSM provides bioavailable sulfur — an essential element for connective tissue integrity. Sulfur is needed for: (1) disulfide bonds in collagen and keratin (structural proteins of cartilage, skin, hair, nails); (2) glutathione synthesis (the body's master antioxidant); (3) sulfation reactions that are critical for joint glycosaminoglycan (GAG) production. MSM also has direct anti-inflammatory activity by inhibiting NF-κB and reducing inflammatory cytokines (IL-1, IL-6, TNF-α), which explains the pain reduction beyond simple structural support.
No significant drug interactions have been identified in clinical literature. MSM is a simple sulfur-containing compound with no known pharmacological interactions. However, as with any supplement, inform your healthcare provider before combining with prescription medications.
Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.