Swanson MSM (methylsulfonylmethane) delivers 1,000 mg of sulphur per serving across 250 convenient capsules, making it one of the most cost-effective MSM supplements available. Sulphur occurs naturally in the body and is found in a wide range of foods. MSM provides a concentrated, highly pure source of organic sulphur.

Each capsule contains 500 mg of methylsulfonylmethane, and the straightforward formulation keeps additional excipients to an absolute minimum — just rice flour and magnesium stearate alongside the gelatin capsule shell. This no-frills approach means you get exactly what is stated on the label, with no unnecessary fillers or artificial additives.

With 125 servings per container and a recommended intake of two capsules three times per day, this large-format pack from Swanson is ideally suited to those looking to incorporate MSM into their long-term daily supplement routine.