Swanson TruFlex ® is a dietary supplement in capsules intended to complement the daily diet of adults. Each serving provides 750 mg of methylsulfonylmethane (MSM). Why choose MSM from Swanson? 750 mg of MSM per daily dose. Only half a capsule a day. Large, economical package – contains up to 240 daily servings. MSM – what is it and what properties does it have? Methylsulfonylmethane (MSM) is a natural sulfur compound found in human cells. It is a component of hair, nails, and connective tissue, including tendons and ligaments. MSM is found in small amounts in foods such as vegetables, fruits, whole grains, and milk. The recommended daily dose is half a capsule. The package contains 240 capsules , which is enough for 8 months of regular organic sulfur supplementation.