3 benefits in 1 leave on hair serum: Nourishment + Styling + Heat Protection This leave on serum is designed for people with straight hair. It contains Japanese Rice Amino Acid extracts which serves as food for damaged hair. The Olive Oil in it acts as Anti-Oxidant and add shine to your hair. It has Heat Protection properties which protects your hair from any dryness and damage that can occur while using any electrical equipment that generates heat. It gives heat protection to up to 220. You can now style your hair without any worry! The serum will make your hair smooth, soft, silky and straight as you desire. It is alcohol free. Direction of Use : Apply thoroughly on hair after shampooing or before styling hair with any salon equipment that generates heat. It can be used on dry or damp hair.