Goldwell StyleSign VOLUME Root Boost Spray 200mlInstant lift where you need it most. The Goldwell StyleSign VOLUME Root Boost Spray, formerly known as Ultra Volume Double Boost, is a targeted root lifting spray that adds body and fullness to fine and limp hair. Providing up to 48 hours of hold, this professional styling spray delivers long lasting root support without weighing the hair down, leaving it looking fuller, bouncier, and more voluminous. Key benefits: Instantly lifts fine and limp roots