Dietary Supplement Methyl-Sulfonyl-Methane 100% Pure Healthy Joint Function Purity & Potency Guaranteed Methyl-sulfonyl-methane (MSM) is a naturally occurring substance known for its diverse health benefits, including support for healthy, hair, skin, nails, and joints. Supplementation of MSM is a safe and natural way to optimize your health. Isura: Non-GMO: Documentation ✓ Mass Spec: Lab Tested ✓ Информация о добавках Serving Size: 1 Capsule Amount Per Serving %Daily Value OptiMSM® Methyl-sulfonyl-methane 1000 mg ** **Daily Value not established.