The whole principle of the lightening powder (powder) is reduced to a sharp and strong oxidation hair. This is necessary in order to destroy the pigment granules of melanin, which determines our hair color.
Due to strong oxidation reaction with the oxidant mixture powder "chips" small pieces on pigment granules. And with every second of contact with a mixture of lightening hair is going faster and stronger.
Melanin pigment granule after such an unpleasant acquaintance becomes smaller, and hair, respectively, lighter. Residues clarifying the mixture and the pellets washed gently cleaved during shampooing with a shampoo.
Since the granules are destroyed - the hair becomes porous (because the voids present in its structure). But white.
Thereby lightening the pigment mixture breaks down? Due to the active oxygen which is formed by the decay of the hydrogen peroxide into active oxygen and water. That active oxygen begins to interact with the pigment pellet and destroy it.
This decomposition reaction of hydrogen peroxide can be observed most, even without causing the hair. Just look at the bowl with the mixture, and then even more slowly, but this reaction is visible.
Powder with an oxidizing agent - lighten hair. Without the oxidant powder is mainly used for pickling - this is when you are not satisfied with painting, and it is necessary to urgently bring to the hair coloring pigment. When pickling mixed with clarifying shampoo little powder, hot water is added, is applied to the entire length of hair incubated 10-15 minutes (depending on the manufacturer of powder) and washed with water. But best of all pickling (as, indeed, and lighting) you hold a master colorist in a salon.
In what proportions to mix the powder with an oxidizing agent - here it is necessary to follow the manufacturer's recommendations, according to the instructions. In this case, the proportion of self-identify experimentally, I highly do not recommend.
Each bleaching powder in its composition is alkaline components. They are necessary to ensure that within the first 10 minutes of contact with the hair to loosen it and allow access to active oxygen ransacked.
That's held hair brightening. Yes, thorough mixture kills the hair, then it should be a long time to nourish and restore. So you want a beautiful blonde - prepare well to invest in a discoloration agent's Skin and itself more staining.
Hair lightening, anyway, rather expensive, and even try to discolor at home hair powder - is another headache barbers to which you then have all the same appeal.
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