Myth 1. Often to dye, your hair is harmful.
It is harmful not to tint the hair, or to dye it from the roots to the ends with the same composition with a high percentage of oxidant, it is harmful to dye hair with poor formulations or to dye it incorrectly. Maintain staining is a must if you need healthy hair.
I will explain. If you have never dyed hair, dyeing them for the first time is to some extent harmful. The dye makes the hair cuticle permeable (this is, to a certain extent, damage to the hair) and fills the hair with artificial pigments. After that, with each wash the dye is washed away, leaving more and more empty hair. Empty hair – fragile, inelastic, rough may begin to split or, more often, break off. Whatever this happens, you need to tint dyed hair once every 4-8 weeks. The toning composition fills the hair again with pigment, makes it dense and elastic, without damaging more cuticle (if the right composition is chosen!).
If you are satisfied with the colour and do not want to change it, there are colourless “dyes”, labelled as 0/00, you can use the wave at home, mixing them according to the instructions with low percentages of oxide.
Myth number 2. If you take the oxide higher, then it is possible to make dyed hair light without lightening with paint.
One of the basic precepts of the colourist – paint does not lighten the paint. I adhere to this rule and never work conditionally as “light paint” on previously painted hair. The idea is that the dye cannot simultaneously lighten the already coloured pigment in the hair (or remove it from the hair) and impart a new shade – these are different processes.
At the same time, I know that there are lines of dyes that are designed to work this way, but their compositions are terrifying the number of aggressive components to the hair. And their concentration. And the result is a usually awful redhead. It is much more careful for hair to remove the pigment first introduced by the brightener or remover, and only then add shade.
Myth number 3. Over time, the dye will wash off until the end.
Any dye that works with an oxidizing agent (you or the master mixes 2 compounds in one) will never be completely washed off, only it will cut off over time. Even tinting, even “bezamiachny.” It may at some point become almost invisible, but with further manipulations with the hair, he will come out and throw up problems. That is why it is very important that you have a master in a chair remember all the manipulations with hair over the past 3-5 years (and longer if you have very long hair). Such a dye can be fully washed only with pre-bleached white hair.
Directly penetrating pigments (all sorts of tinting balm, tonics, lotions, what is applied to the head and rinse, without mixing with oxide) can be leached out completely, but they may not be leached out. It depends on the composition and the hair and even the shade. So it is better to take them into account too.
Myth number 4. From the paint fall hair.
Hair falls out of stress, illness, hormonal problems, lack of / excess vitamins, but the hair does not fall out of paint. From illiterate dyeing hair can break off, if your master handles – hair can break off from the border with the skin. But the hair can not physically fall out from the paint, the paint to the bulbs is not enough.
Let me remind you that the hair follicle is located quite deep in the skin, under a layer of the epidermis. Approximately at a depth of 2.5-4 mm. The paint does not penetrate so deep into the skin. If it penetrated, it would enter the blood (the hair feeds on a blood vessel), and we would quickly feel it.
For today, perhaps, enough. If you have questions – ask, I will try to answer them. If you do not believe me – google, all the information is in open sources, just please read the encyclopedias and textbooks, not the forums 🙂
All information in the post is collected from various sources, life and professional experience, as well as lectures at the school of hairdressers, where I studied. there will be no specific references to sources.