It is an oxidizer of hair dye or an oxidizer of hair bleaching or decoloration

Product Details 

When using a colorant and an oxidizer : Well mix the first and second formulas in 1:1 ratio before using and apply evenly to your hair. After 30 minutes, do shampoo and rinse thoroughly with warm water.

when using oxidizer only : Apply a proper amount of the product, do shampoo after 30 minutes, and rinse thoroughly with warm water.

Volume : 1000ml