The factor that causes an unwanted yellow tint to stick to the hair are pigments of the tint. A yellow neutralizing shampoo has a purple color and includes purple pigments that neutralize the yellow color.

Why a purple pigment? Since purple is the opposite color of yellow, the shampoo formula contains purple color components, which allow the shampoo to neutralize yellow tones that are not immediately desirable, while gently cleansing the hair.
Overlapping for a while with the shampoo will cause the same yellow colors to fade and disappear while the original blonde color returns to stand out and be as bright, shiny and radiant as you dreamed.
For professional and home use, it can be ordered in a size of 500 ml.

Instructions for use :

Wash your hair twice and wait for the desired shade. Then rinse well with water.

Warning : Do not use the product if sensitivity to one of the ingredients is known, use the cosmetic only for the purpose for which it is intended and in accordance with the instructions for use. Do not swallow. Eye contact should be avoided and in case of such contact rinse thoroughly with water. Keep away from children. Store in a cool place, below 30 degrees.