Loreal Inoa 20 Vol 6% Ammonia-Free Oxidant Cream 70 ML (Filling) Oxidant Selection Oxidant is a creamy liquid that activates the dye. One of the most important elements of hair dyeing is choosing the right oxidant. Improper handling will make the choice of oxidants, may have unintended consequences. For this reason, you should choose your oxidant as carefully and carefully as your choice of paint. Be careful to use the same brand of oxidant as the paint you choose. You can easily choose the oxidant suitable for the process you will apply from the table below. 10 Vol. Oxidant: For hair darkening processes and technical applications - 20 Vol. Oxidant: White coverage - 1-2 tone lightening/darkening process and for dyeing the hair to the same tone - 30 Vol Oxidant: It should be preferred to lighten the hair up to 2-3 tones.