Experience a silky smooth finish with Pureology's A small amount has been used however 140ml is remaining. Smooth Perfection Heat Protectant Smoothing Serum. Designed specifically for colour-treated hair, this 150ml bottle provides both heat protection and smoothing effects, ensuring your hair remains sleek and beautiful. The standard size is perfect for everyday use, making it a must-have for any haircare enthusiast. Pureology's dedication to quality is evident in this Heat Protectant Smoothing Serum, with a formula that shields your hair from the damaging effects of heat styling tools. It's a vital step in your haircare routine, providing both practicality and luxury. Add it to your collection today for hair that looks and feels its best.