EMSense Roll-On contains a smooth, lightweight formula made with purified water, carbomer, xanthan gum, polyvinylpyrrolidone, triethanolamine, disodium EDTA, and phenoxyethanol to help create a consistent and easy-to-apply texture. It also includes menthol for a light cooling sensation, along with green-lipped mussel extract and plant extract to support a calming, refreshing feel.