Kerastase Resistance Lengthening Hair SerumThe Benefits: Supports healthy hair lengths. Soothing texture for itchy scalp. Essential nutrition for healthy hair. How to Use: Apply Srum Extentioniste directly to the scalp on cleansed, towel dried hair. Depending on hair type, 2 pipettes for fine hair and 4 for thick hair, position the pipette directly at the root and scalp to distribute 1 full pipette of the serum in a straight line from the front to the back of the head. Follow the pipette with