The basics A rapid drying waterproof liquid that creates a water repellent base film. The benefits Use in conjunction with glycerine gel stippled on the top to give the appearance of a long lasting sweaty look The uses Spray Sweat Spray directly onto the skin (absorbs quickly). It ensures a water-repellent film. Then spray on water , which provides an optical sweat effect on the skin. The bottom line Once sprayed, it lasts the whole day. Simply spray water.