The single active ingredient is Arnica montana, a mountain daisy.No traditional strong medicine smell; free of fragrances, dyes, and parabens.Cools and refreshes upon contact.Residue-free: non-sticky, non-greasy, and water-based.Absorbed quickly by the skin — ideal for first aid treatment for athletes.Won’t mask symptoms of a more serious condition.Available over the counter in 1.5 oz and 2.6 oz tubes, and a 4.1 oz. value-size tube.Also offered as a cream, ointment, tablet, and arthritis pain formula.