... vegetables, milk, meat, seafood, and some grains. However, natural MSM is volatile and is easily lost during even moderate processing ... heartburn and hyperacidity, headaches and back pain, and allergies. MSM is critical to the formation of connective tissue of all ... hair, and softening of scar tissue. MSM is often combined with glucosamine and chondroitin for joint relief and repair. High Purity Methyl ...