MSM
Last updated: January 23, 2026
For informational purposes only. Not medical advice. Always consult a healthcare professional.
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What Is MSM?
Methylsulfonylmethane (MSM) is an organosulfur compound naturally found in plants and animals that serves as a source of bioavailable sulfur. It functions primarily as an anti-inflammatory agent by modulating inflammatory pathways and oxidative stress, while also supporting collagen synthesis and joint tissue health. MSM is commonly used as a dietary supplement for joint pain, osteoarthritis, skin health, and general inflammation reduction.
MSM Research & Studies
01 Methylsulfonylmethane: Applications and Safety of a Novel Dietary Supplement ▸
Comprehensive review found MSM improves inflammation, joint/muscle pain, oxidative stress, and antioxidant capacity, with dosages up to 4 grams daily being well-tolerated with few side effects.
View Study (PubMed)02 Methylsulfonylmethane (MSM), an organosulfur compound, is effective against obesity-induced metabolic disorders in mice ▸
Animal study demonstrated MSM's effectiveness in reducing metabolic disorders associated with obesity through anti-inflammatory mechanisms.
View Study (PubMed)03 Efficacy and safety of a supplement combination on hand pain among people with symptomatic hand osteoarthritis ▸
Clinical trial evaluated MSM as part of a supplement combination for hand osteoarthritis pain relief in patients with symptomatic joint disease.
View Study (PubMed)04 Efficacy of dietary supplements for treating knee osteoarthritis: a systematic review and network meta-analysis ▸
Network meta-analysis comparing various dietary supplements including MSM for knee osteoarthritis found potential benefits for pain reduction and joint function improvement.
View Study (PubMed)05 Nail Supplements: When, How, and Why? ▸
Review found that MSM along with biotin, collagen peptides, and other supplements can improve nail clinical appearance, strength, and reduce brittleness.
View Study (PubMed)06 Methyl-sulfonyl-methane (MSM)-induced acute angle closure ▸
Case report of a rare adverse event where MSM supplementation was associated with bilateral acute angle closure glaucoma that resolved after discontinuation.
View Study (PubMed)07 Methylsulfonylmethane sensitizes endometrial cancer cells to doxorubicin ▸
Laboratory study found MSM can enhance the effectiveness of chemotherapy drug doxorubicin in endometrial cancer cells by inducing apoptosis.
View Study (PubMed)MSM User Reviews & Experiences
Sentiment score computed from aggregated public user reports, forums, and community discussions. Not a clinical measure.
Users report consistently positive experiences with MSM, particularly for joint pain relief, hair and nail growth, and skin improvements. The majority describe long-lasting benefits even after discontinuation, with minimal side effects when properly hydrated.
MSM Benefits, Dosage & Side Effects
- Joint Pain Relief: Users report significant reduction in knee pain, creaking joints, and arthritis symptoms, with many noting effects persist even after stopping supplementation
- Hair and Nail Growth: Frequent reports of accelerated hair growth, increased hair thickness, stronger nails, and improved nail growth rates within weeks of starting
- Skin Health: Users experience improved skin elasticity, reduced fine lines, and better overall skin appearance when combined with proper hydration
- Mental Well-being: Some users report reduced anxiety, decreased rumination, increased joy, and improved mood, possibly related to anti-inflammatory effects
- Joint Support: Highly effective for joint pain and osteoarthritis, particularly when combined with glucosamine, chondroitin, and collagen supplements
- Long-lasting Results: Many users report that benefits to joints persist for years after discontinuing MSM, suggesting potential structural improvements
- Hair and Beauty: Consistently effective for cosmetic benefits including hair growth, nail strength, and skin health, typically noticeable within 2-4 weeks
- Individual Variation: Some users experience no benefits or gastrointestinal issues, while others report dramatic improvements, suggesting genetic or metabolic variation in response
- Standard Dose: 1000mg daily is commonly used and effective for joint pain and general health benefits
- High Dose: Some users take up to 10g daily for more severe joint issues, though this requires increased water intake to prevent headaches
- Timing: Often taken once daily in the morning, with vitamin C recommended to assist absorption
- With Food: Can be taken with or without food, though some users prefer taking it with meals to reduce potential stomach upset
- Gastrointestinal Issues: Some users experience bloating, gas, or stomach upset, though others report MSM actually calms their gut
- Excessive Thirst: Higher doses (10g+) cause intense thirst and dry mouth, requiring significantly increased water intake
- Unwanted Hair Growth: Some users report increased hair growth in unexpected areas including face, torso, and stomach
- Rare Reactions: Isolated case reports of acute angle closure glaucoma in susceptible individuals, though this is extremely uncommon
- Widely Available: MSM is readily available over-the-counter at health stores, online retailers, and pharmacies at affordable prices
- GRAS Status: Recognized as Generally Recognized As Safe by regulatory authorities, with dosages up to 4g daily considered safe for most individuals
- Combination Products: Frequently sold in combination with glucosamine, chondroitin, and hyaluronic acid for joint health formulations
Related Compounds
Community Reviews
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