Our Pain Relief Kit is the absolute best way to find immediate relief from muscle pain, but also provides additional healing through the natural chemical constituents that exist in these 2 products. Our SOOTHE muscle rub has a higher percentage of natural occurring menthol (the active ingredient in the popular Icy Hot for muscle pain), and only contains all-natural ingredients that increase blood flow, moisturizes, and supports healthy circulation making this Pain Relief Kit ideal for massage treatments.