Doctor's Best Synergistic Glucosamine MSM Formula with OptiMSM is a joint health supplement that helps with mobility and comfortable movement for daily life. MSM and glucosamine target cartilage health and joint comfort. MSM provides bioavailable sulphur for connective tissue. Science-based nutrition really matters. Doctor's Best keeps formulas non-GMO and gluten-free. Reliable manufacturing and a long history in the health supplement space make it a solid everyday pick.

Available Sizes & Variants:

180 capsules - convenient daily dosage for joint support

Benefits & Features:

• Supports joint comfort for daily movement.
• Glucosamine supports cartilage structure to help joints stay flexible and comfortable.
• MSM provides bioavailable sulphur essential for connective tissue resilience and flexibility.
• Vitamin C supports collagen formation, strengthening cartilage and aiding natural repair, which can help maintain joint integrity and mobility as everyday activities gradually accumulate over time.
• OptiMSM offers high purity and strong absorption for steady joint support.

Doctor's Best has built a reputation on science-based nutrition, and this formula aligns with that heritage. The glucosamine comes from shellfish shells, while MSM is supplied as OptiMSM, a branded, distilled sulfur source claimed to be 99.9% pure. The product is non-GMO, gluten-free, and soy-free, reflecting the brand's commitment to clear ingredients. Optimised sourcing and careful blending help deliver a reliable daily option for joint support, it's, well, basically exactly what active people want.

Vitamin C (as Ascorbic Acid), Chloride (from glucosamine hydrochloride potassium sulfate), Potassium (from glucosamine hydrochloride potassium sulfate), MSM (Methylsulfonylmethane)(OptiMSM), Glucosamine Hydrochloride Potassium Sulfate, Vitamin C (as Ascorbic Acid), Chloride (from glucosamine hydrochloride potassium sulfate), Potassium (from glucosamine hydrochloride potassium sulfate), MSM (Methylsulfonylmethane)(OptiMSM), Glucosamine Hydrochloride Potassium Sulfate

• GTIN: 753950000704
• Manufacturer: Doctor's Best
• Categories: Best SellersDoctor's BestGlucosamine Supplements SupplementsMSM Supplements, Tablets and PowdersSubscribe & Save Products
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 3 capsules twice daily with food, or as recommended by a nutritionally informed physician. Store in a cool, dry place. Warning: Consult your physician before using any health supplement if you are pregnant, lactating, have a medical condition, or are taking medications for diabetes, glaucoma, or anticoagulants. Not for use by individuals under the age of 18 years.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: MSM (Methylsulfonylmethane) - OptiMSM

MSM is a small molecule with bioavailable sulphur that helps the body’s connective tissue components. This form is OptiMSM, a branded, high-purity source known for its stability and consistency.

This formula uses MSM supplied as OptiMSM to give a reliable, highly pure sulphur source for everyday connective tissue support during daily activity.

What Does MSM Do?

MSM helps form connective tissue and supports normal tissue function by supplying sulphur essential for biomolecule synthesis.

It participates in pathways that may influence tissue flexibility and integrity, aligning with general joint support and mobility principles as described in EFSA guidance.

Why Doctor's Best Glucosamine MSM Formula is Welzo Selected

Doctor's Best sits in line with Welzo's strict supplier criteria, through a clear focus on science-based nutrition and open product positioning. The brand is recognised for promoting science-led approaches and for offering products that are non-GMO, gluten-free and soy-free, reflecting our commitment to purity and reliability. Their emphasis on a structured formulation with well-known ingredients complements Welzo’s heritage of evidence-led curation. For expert assessment, our team evaluates brands like Doctor's Best with care, drawing on the depth of their scientific framing and consistency across product lines. You can see how our our team of medical experts approaches such brand experiences, including alignment with the certifications we require.

Product-wise, Doctor's Best uses OptiMSM and shellfish-derived glucosamine, a combination tailored for a comprehensive joint-health profile while maintaining clear sourcing notes. This brand is a natural fit for this supplement category, aligning with Welzo’s standards for quality, traceability and robust brand credibility. Our evaluation process ensures selecting brands with proven manufacturing philosophy and adherence to high standards, informing a confident recommendation for this product.