Get fuller, thicker locks with Achieve thicker, fuller hair with Kevin Murphy's Blow Dry Ever Thicken. This heat-activated spray creates long-lasting volume and locks out humidity for a lasting blow dry. Get professional-level results with this weightless and effective style extender.. Infused with ginger root extract, it stimulates hair growth and improves scalp circulation. Easy to use, it won’t weigh hair down or leave residue. Achieve all-day volume and bounce with regular use. Try it now!