The Anti Residue Shampoo is Step Two in the application process. With a pH of 9 (alkaline) this opens the hair shaft so the Brasil Keratin Reconstruction (acidic) will be effective.
The Anti Residue Shampoo is Step Two in the application process. With a pH of 9 (alkaline) this opens the hair shaft so the Brasil Keratin Reconstruction (acidic) will be effective.