The Oxy Active from the NK Professional Care line of product or the stabilizing hydrogen peroxide (creamy) is used to release and develop the hair pigment alongside ammonia.
Its formula contains castor oil which reduces hair brittleness.
The product has dimethicone, a silicone that gives the hair a better appearance.
Depending on each volume (10, 20, 30 and 40), the level of lightening the hair varies by 1, 2, 3 and 4.
