Kerastase Resistance Ciment Thermique Strengthen your hair's fibre internally & protect the surface of your hair. Smoothing your hair from root to tip & firming increasing suppleness & energy on the surface of your hair. Using Thermo-activation it increases the effect of the product when heat is applied sealing the reconstructing agents inside the hair fibre. Directions Of Use: Recommended Hair Bath: Bain de Force or Bain Volumactive. Apply to towel-dried hair before styling. Work a small amount thoroughly into the hands. Starting at the nape area apply mèche by mèche to mid-lengths & ends avoiding the root area. Massage-in thoroughly to give an even distribution. Repeat finishing at the front hairline. Detangle using a wide-toothed comb starting with the ends & moving towards the roots. Do not rinse. Blow-dry using round styling brush. Style hair using flat ceramic irons or tongs.