Instructions for Use: Put Ostwint Powder Hair Lightener in a non-metal container and mix with oxidant cream (10-20-30-40-volume) until a homogeneous mixture is obtained. Waiting time is between 15-20 minutes. Heat treatment can accelerate the bleaching time. Once the bleaching process is completed, the hair should be rinsed with plenty of water. It should be washed with shampoo. Post-Application Care Rinse the hair with plenty of water after bleaching. Then complete the process by applying shampoo and conditioner.