EZ-Willow™ Liniment is a blend of essential oils and botanicals, including Arnica Montana, MSM, White Willow, Yerba mate, Methyl Salicylate among others, in a cooling gel base. It can be used for any minor soreness, lameness, or swelling due to overexertion. It’s effective on any muscles, including the back, shoulders, legs, joints, tendons, and ligaments. It will not flake or blister and may be used on a daily basis. No artificial colors – the product’s color is due to its natural active ingredients.