Last update
4/5/2026
Reviewed By
Reviewed By
Overview
SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
USERS' SCORE
Good
Based on 11 Reviews
8
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
MethylSulfonylMethane (MSM)
1,000 mg
†
Top Medical Research Studies
7
KCNA2 autoimmunity diverse; immunotherapy beneficial
We analyzed data from 35 patients with KCNA2 IgG autoantibodies linked to various neuropsychiatric issues, including cognitive impairment and seizures. These autoantibodies were notably present in cerebrospinal fluid in some patients and showed different subclasses in serum.
Notably, four patients saw significant improvement with early immunotherapy, particularly those with autoimmune encephalitis. The findings suggest that KCNA2 autoimmunity is varied, indicating the need for more research to clarify its role and therapeutic approaches.
Notably, four patients saw significant improvement with early immunotherapy, particularly those with autoimmune encephalitis. The findings suggest that KCNA2 autoimmunity is varied, indicating the need for more research to clarify its role and therapeutic approaches.
Read More
Most Useful Reviews
9
Reduced pain
8 people found this helpful
I endure cartilage tissue degeneration, experiencing severe joint pain from spinal hernias and protrusions. MSM has been tremendously helpful, enabling me to go without a corset, as directed by my doctors. I rarely rely on painkillers anymore, and I highly recommend this natural remedy to those in similar circumstances.
Read More
9
Effective pain relief
I used to use my hands a lot, which made my finger joints throb during bad weather. I find it slightly alarming how effective this product is, but I encourage everyone to order quickly.
Read More
6
Reliable supplement
2 people found this helpful
This is the remedy that led me to start ordering from iHerb! It's my constant companion—trustworthy and wonderful. It seems to support joint health, and although the effects are subtle, I definitely feel the benefits. Highly recommend!
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
- All Researches
7
KCNA2 autoimmunity diverse; immunotherapy beneficial
We analyzed data from 35 patients with KCNA2 IgG autoantibodies linked to various neuropsychiatric issues, including cognitive impairment and seizures. These autoantibodies were notably present in cerebrospinal fluid in some patients and showed different subclasses in serum.
Notably, four patients saw significant improvement with early immunotherapy, particularly those with autoimmune encephalitis. The findings suggest that KCNA2 autoimmunity is varied, indicating the need for more research to clarify its role and therapeutic approaches.
Notably, four patients saw significant improvement with early immunotherapy, particularly those with autoimmune encephalitis. The findings suggest that KCNA2 autoimmunity is varied, indicating the need for more research to clarify its role and therapeutic approaches.
Read More
User Reviews
USERS' SCORE
Good
Based on 11 Reviews
8
- All Reviews
- Positive Reviews
- Negative Reviews
9
Reduced pain
8 people found this helpful
I endure cartilage tissue degeneration, experiencing severe joint pain from spinal hernias and protrusions. MSM has been tremendously helpful, enabling me to go without a corset, as directed by my doctors. I rarely rely on painkillers anymore, and I highly recommend this natural remedy to those in similar circumstances.
Read More
9
Effective pain relief
I used to use my hands a lot, which made my finger joints throb during bad weather. I find it slightly alarming how effective this product is, but I encourage everyone to order quickly.
Read More
6
Reliable supplement
2 people found this helpful
This is the remedy that led me to start ordering from iHerb! It's my constant companion—trustworthy and wonderful. It seems to support joint health, and although the effects are subtle, I definitely feel the benefits. Highly recommend!
Read More
9
Improved joint mobility
1 people found this helpful
An excellent preparation of methylsulfonylmethane. I have tried various brands of MSM, and this one is very effective. The convenience of having 200 capsules per package is great, especially as I need 2 per day. For those suffering from serious issues with the ligamentous apparatus, I suggest increasing to 3 capsules daily. My joints have stopped cracking, and I feel more mobile. Additionally, my vision appears to have improved, and my heels are no longer dry. Though my problems occasionally return, I can always reorder this product. Thank you to those who recommend it. Wishing everyone good health!
Read More
7.5
Effective choice
1 people found this helpful
My parents are using these products. I ordered it because it's effective for joints! This was my first purchase on iHerb, although I had ordered Jarrow products before.
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Frequently Asked Questions
6
Reliable supplement
2 people found this helpful
This is the remedy that led me to start ordering from iHerb! It's my constant companion—trustworthy and wonderful. It seems to support joint health, and although the effects are subtle, I definitely feel the benefits. Highly recommend!
6
Affordable quality
2 people found this helpful
This MSM nutritional supplement is the best in terms of price and quantity. Jarrow, a leading supplement brand, offers a quality product at a lower price compared to domestic options. I regularly order it for my parents, who suffer from knee joint issues, and they claim it’s more effective when taken with vitamin C. While some attribute improvements to placebo, I firmly believe there’s a genuine enhancement effect when consistently used.
6
Minimal effect noted
I ordered this dietary supplement based on its praise for joint support. While the quality and ingredients are excellent, I struggled to maintain consistency with it. The packaging is sealed and suitable for those aged 18+. Unfortunately, the benefits were minimal, likely due to my lack of commitment. A proper diet and calcium intake are crucial as well.
9
Reduced pain
8 people found this helpful
I endure cartilage tissue degeneration, experiencing severe joint pain from spinal hernias and protrusions. MSM has been tremendously helpful, enabling me to go without a corset, as directed by my doctors. I rarely rely on painkillers anymore, and I highly recommend this natural remedy to those in similar circumstances.
9
Improved joint mobility
1 people found this helpful
An excellent preparation of methylsulfonylmethane. I have tried various brands of MSM, and this one is very effective. The convenience of having 200 capsules per package is great, especially as I need 2 per day. For those suffering from serious issues with the ligamentous apparatus, I suggest increasing to 3 capsules daily. My joints have stopped cracking, and I feel more mobile. Additionally, my vision appears to have improved, and my heels are no longer dry. Though my problems occasionally return, I can always reorder this product. Thank you to those who recommend it. Wishing everyone good health!
7.5
Better knee pain
I wish the size was a bit smaller. My parents mentioned experiencing joint pain with age, so I ordered this product thinking it would help. After using it, I noticed my parents’ knee joint pain seems to have improved. However, they dislike the large size of the capsules!
7
KCNA2 autoimmunity diverse; immunotherapy beneficial
We analyzed data from 35 patients with KCNA2 IgG autoantibodies linked to various neuropsychiatric issues, including cognitive impairment and seizures. These autoantibodies were notably present in cerebrospinal fluid in some patients and showed different subclasses in serum.
Notably, four patients saw significant improvement with early immunotherapy, particularly those with autoimmune encephalitis. The findings suggest that KCNA2 autoimmunity is varied, indicating the need for more research to clarify its role and therapeutic approaches.
Notably, four patients saw significant improvement with early immunotherapy, particularly those with autoimmune encephalitis. The findings suggest that KCNA2 autoimmunity is varied, indicating the need for more research to clarify its role and therapeutic approaches.
References
- Arlt FA, Miske R, Machule ML, Broegger Christensen P, Mindorf S, et al. KCNA2 IgG autoimmunity in neuropsychiatric diseases. Brain Behav Immun. 2024;117:399. 10.1016/j.bbi.2024.01.220
Data last updated:
