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Synergistic Glucosamine MSM

180 Capsules DRB-00070

Take on the day.

Healthy joints are essential to move freely and without discomfort. This formula contains a pure, sodium-free, potassium-stabilized glucosamine that promotes healthy joints and connective tissues.* 

What many don’t know about glucosamine is that it is derived from ocean-grown shellfish, processed to remove all residues of protein and impurities. We also added vitamin C, which is essential for the production of collagen to strengthen cartilage, in addition to  OptiMSM® to bolster the benefits and provide you with optimum results.* Keep yourself moving with a daily dose of Synergistic Glucosamine MSM.*

  • Non-GMO
  • Gluten Free
  • Soy Free
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I like Doctor’s Best products and this is another good one. As someone who does a lot of lifting at the gym, I like to support all my joints to keep them in excellent shape. I am a 66-year-old female who has been lifting for 36 years.

Reviewed in the United States on September 10,

I was recently diagnosed with Rheumatoid Arthritis and find that if I take two of these three times a day I do feel nearly pain free, and there are no side effects!

Reviewed in the United States on September 15,

I've been taking this brand for probably about 10 years. It helps with my fibromyalgia, stiff hands and feet, and also makes my skin smoother and my hair noticeably thicker. I skip a lot of things in life. I never skip this. Other brands don't work as well. My family all uses it now, too.

Reviewed in the United States on March 20,
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MSM manufacturing magic

We chose American-manufactured OptiMSM® for our formulas because it is the purist and only form of MSM on the market that is GRAS-designated (Generally Recognized as Safe). It achieved this designation by adopting a four-stage process to separate impurities including heavy metals and other contaminants. Each batch exceeds the United States Pharmacopeia (USP) monograph standards for MSM, and is validated by testing in independent laboratories.

Suggested Use

Each serving contains 1,500 mg of OptiMSM®, 150 mg of vitamin C, 90 mg of chloride, 90 mg of potassium and 750 mg of glucosamine. Take three capsules twice daily with food.


Doctor's Best uses OptiMSM, a premium trademarked form of MSM, made in the USA and certified for quality and consistency.

It comes from the shells of shellfish, shrimp and crab shells contain a polymen called chitin. Chitin is processed into glucosamine.

MSM is not commercially available as an extract from plants or other natural materials. OptiMSM is made by converting DMSO (dimethylsufloxide) which is an organosulfur compound (organic compound containing sulfur), to DMSO2.

Yes, it is completely different from sulfa drugs, sulfites and sulfates.

MSM is an organic substance that contains bioavailable sulfur. MSM contains about 34 percent elemental sulfur. 1000 mg of MSM contains about 340 milligrams of elemental sulfur.

Doctor's Best products can be found at vitamin specialty, chain and independent natural product stores across the country, as well as online. We recommend that you use our online Where to Buy store finder to find a store near you or one of our online partners who can ship to you directly.

Doctor's Best products are quality tested and manufactured in the United States using highly qualified cGMP manufacturers and raw material ingredients. Doctor's Best sources raw materials from around the world and ingredients are subject to the intense testing and verification regardless of geography of origin.

Through distillation.