NOW Supplements, Glucosamine & MSM combines two essential ingredients for joint mobility and comfort—Glucosamine and MSM—in a vegetarian/vegan-friendly formula. This supplement is perfect for those looking for joint support without using shellfish-derived glucosamine. Glucosamine is an essential building block of cartilage tissue, promoting healthy joint function, while MSM (Methylsulfonylmethane) supports the body's natural repair of tissues and joints. This non-GMO, vegetarian formula helps to maintain flexibility and overall joint health.