After hair is treated by the keratin straightening system, it must not be washed or come into contact with water for 72 hours. During this 3-day period, the hair should not be pulled or clipped back. Anything that can leave an impression in the hair, such as sunglasses or a hat, should be avoided.
If the hair comes into contact with water during the 72-hour period, the hair should be blown dry and flat ironed using low to medium heat as soon as possible.
People who do not want to wait 72 hours to wash their hair should consider the Express Blow Out keratin treatment, as this treatment allows hair to be washed after 8 hours.