Reconstructive hair filler Penetrates deep into the hair structure. Intense internal restructuring action. Instantly strengthens and plumps up lacerated areas. Use: After shampooing, apply the filler diagonally, lock by lock, along the lengths (starting from the occipital area) using a syringe (20 ml on short hair, 30 ml on medium hair, 35/40 ml on long hair). Massage the counterscale from the ends to the base of the hair, maintaining uniform pressure along the entire length. Leave on for 5-10 minutes under a heat source or cap. Do not rinse.