Blow dry after application and then flat iron 4-5 times from the root to the end. Hair can be washed same day using the BK Salt & Sulfate Free Shampoo. This item is in the category "Health & Beauty\Hair Care & Styling\Relaxers & Straightening Prod". The seller is "bkbeautysupply" and is located in this country: US. This item can be shipped to United States.