Merlin Professional Level 4 Pistachio & Almond Daily Leave-In Spritz Body Support Power Treatment strengthens & repairs weak & chemically altered hair. Directions for use: Shampoo/cleanse. Spritz around 15ml of Merlin Professional Level 4 Pistachio & Almond Daily Leave-In Spritz Body Support Power Treatment onto the hair & comb blend. Finish as desired. p H level 6.5.