Harness the Power of Heat Leave-in Treatment Contains Tostea® 5%. For hair that is manageable, without wave, and easy to style. How to Use: Thoroughly towel-dry hair to remove excess water. Apply an appropriate amount to your palm and spread evenly. Short: Pearl-sized amount 1-2 (0.3-0.6g) Medium: Pearl-sized amount 2-3 (0.6-0.9g) Long: Pearl-sized amount 3-4 (0.9-1.2g) Focus on applying to the mid-lengths and ends of your hair. Dry with a hairdryer. The heat from the hairdryer enhances the damage repair effect. Also, it utilizes the heat from hair irons to improve the hold of curls and straight styles.