How a small molecule shows up in cartilage, skin, gut lining, and the glutathione system.
Sulphur is the third most abundant mineral in the human body, after calcium and phosphorus. It sits in every cell, in the amino acids methionine and cysteine, in the antioxidant glutathione, in the structural proteins collagen and keratin, and in the connective tissue glycosaminoglycans that give cartilage its cushion. Yet most people have never thought about whether they're getting enough of it.
MSM — methylsulfonylmethane — is the most bioavailable supplemental form of organic sulphur. It's a small, naturally occurring molecule found in trace amounts in fruits, vegetables, and grains, and in much larger amounts in supplement capsules and powder. Vivid's MSM capsules deliver 810 mg per capsule — a dose that actually matches what the clinical literature uses.
What the trials show
The strongest evidence for MSM is in osteoarthritis. Multiple randomised controlled trials — including a 2006 study by Kim et al. in Osteoarthritis and Cartilage — suggest 1.5 to 6 grams of MSM daily may support joint comfort and ease stiffness, with a favourable safety profile relative to standard pain medication. It is not a substitute for medical treatment of osteoarthritis.
The mechanism isn't fully characterised, but the working theory is straightforward: sulphur is a rate-limiting building block for cartilage repair. If you're not getting enough dietary sulphur — and modern processed diets are low in it — your body can't synthesise enough glycosaminoglycans to keep up with cartilage turnover. MSM fills that gap.
Beyond joints
Sulphur also shows up in two other systems that matter.
Skin and connective tissue. Collagen and keratin are sulphur-rich proteins. There's preliminary evidence that MSM improves skin elasticity, reduces fine lines, and strengthens nails and hair — though the trial data here is thinner than for joints.
The glutathione system. Glutathione is the body's master intracellular antioxidant, and it requires cysteine — a sulphur-containing amino acid — for synthesis. By providing bioavailable sulphur, MSM indirectly supports glutathione production. This is the mechanism behind MSM's modest anti-inflammatory and recovery effects in athletes.
Capsules vs powder
Vivid sells MSM in both formats. The 90-count and 300-count capsules deliver 810 mg per capsule — convenient, pre-dosed, tasteless. The 150g and 500g powders let you dose flexibly, which matters if you want 3 grams or more per day (the dose used in most positive trials). MSM powder has a mildly bitter taste; most people mix it into juice or a smoothie.
How quickly does it work?
MSM is not an analgesic. It doesn't block pain the way ibuprofen does. It's a structural building block — the effect builds over weeks as your body uses the sulphur to synthesise new connective tissue. Most users report noticeable improvement at 4 to 8 weeks of consistent daily dosing. If you stop after two weeks because "nothing happened," you haven't given it enough time.
The bottom line
MSM is one of the least glamorous supplements on the shelf. It doesn't have the marketing cachet of collagen peptides or the Instagram appeal of greens powders. But the evidence base is solid, the safety profile is excellent, and the cost per effective dose is low. If your joints, skin, or recovery feel like they're not keeping up with your activity level, sulphur deficiency is worth ruling out — and MSM is the simplest way to do it.