It is a non-pigmented formula that can have different applications:
It can be mixed with the rest of the dyes on the menu, thus reducing their intensity and height.
If mixed with intensifiers, pastel colors can be obtained.
Starting with number 6.0, a bifurcation appears due to the need to differentiate between two shades, so we will have warm tones (W: WARM), with a slight brown nuance, and cold tones (C: COOL), with slight green nuances.
To the exposure time of the dye, to an inappropriate choice of the oxidizing cream, to the inappropriate proportion of coloring cream and oxidizing cream.
They cover 100% of the most resistant gray hair, since they have greater pigmentation than natural tones.
They have a slight brown tint
Ammonia opens the hair cuticle to encourage the entry of dyes and releases oxygen from hydrogen peroxide, lightening melanin.