100% original invoiced product 1-The hair to be treated is first washed with shampoo before the bio-process. 2-The washed hair is not conditioned and dried so that no moisture remains. 3-The product is applied to dried hair like dye. 1-5 cm above the bottom 4-After applying keratin to the hair, a 15-minute waiting period begins. After waiting for 5-15 minutes, the hair is dried and carefully blow-dried once. 6-Blow-dried hair is straightened with a press at the highest temperature the hair can handle. 7-The treated hair is washed and dried. Remember to protect your hands during application. Cannot be applied to pregnant women