Extra Strength Stopain Roll-On delivers fast, temporary relief from arthritis, muscle aches, and joint and back pain. It's formulated with the proven pain-relieving benefits of menthol. It also contains MSM and Glucosamine -- essential ingredients long known for their ability to help reduce joint pain and arthritis pain. Works fast, keeps hands clean, light vanishing scent, non-greasy, easy to use, and works on contact. Stopain products have been providing pharmacist-recommended, immediate, and penetrating pain relief to millions of Americans since 1991.