Only Olaplex can do that – An active ingredient that changes everything. With the 8-fold patented Olaplex active ingredient Bis-Aminopropyl Diglycol Dimaleat. The spray gives hair volume and protects it from heat and humidity for weightless blow-outs and noticeably soft, shiny and visibly healthy hair. - Gives body and bounce. - Ultra-lightweight formula for noticeably soft and healthy-looking hair. - Protects against humidity and heat and accelerates hair growth by up to 25%. - Supports hair repair with patented Olaplex Bond-Building technology. - Can be used on dry and wet hair, even multiple times, and leaves no build-up. How to use Spray onto clean, towel-dried hair, focusing on the roots. For extra volume, use a round brush to lift the hairline when blow-drying.