Kenra Professional Thickening Spray Kenra Thickening Spray plumps hair strand by strand up to 96%. Add fullness and body to achieve the appearance of thicker hair. Provides flexible, touchable hold for up to 24 hours. • Increases the density of the hair shaft up to 150% • Increases hair thickness up to 96% after 3 applications • Significantly increased body for up to 24 hours • Protects against humidity and frizz for up to 48 hours • Non-flaking, brushable finish