Echosline Oxygenada 10 Vol.
The oxygenated water of the Echos Line brand is especially indicated to mix with other products and thus, get that the result of your color is much brighter, lasting and highlights much more.
Add the amount of hydrogen peroxide that you want to mix with other products, and follow the instructions for use of the latter.
Avoid contact with eyes and if this happens, rinse abundantly with water.