There are many kinds of gray hair, such as blue gray, purple gray, milk gray, pencil ash and so on. And the color suitable for hot weather in summer, blue and gray will look refreshing and cool. The so-called blue gray is to show the feeling of blue on the basis of gray. Only by making it gray can we talk about blue. We know that to make this tidal color, we need to bleach the hair, and the blue gray needs the background color of the hair to reach 9, so that the color will look better.
First, apply 6℃ hydrogen peroxide and 0/00 to the whole head to leave hair roots, and stay for 20 minutes. This step is called ice-breaking treatment, and the hair scales are slowly opened with 0/00 to reduce the damage of bleached hair. Then scrape off the dye paste and cover the head with 6 times oxygen milk and bleaching powder, leaving hair roots. At this time, the quantity must be sufficient. It can decolorize hair in the fastest time, generally without heating, because heating can easily whiten hair, and this process needs to be operated two or three times according to the background color of hair.
Blending cream: 6/11+0/88+0/66+0/1+2+0% Proportion:100:10: 4. Wash your hair after 40 minutes.
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How to reduce the damage caused by dyeing hair: dyeing hair will definitely damage the hair quality.
The biggest concern for ordinary people to dye their hair is the damage of hair dye to their hair. KingLee, who has done a lot of bleaching and highlighting on hair, said that because a large amount of alkaline substances enter the hair during dyeing, the original protein and amino acids are destroyed, and the dyed hair will become dry and lose luster and elasticity, so the damage to the hair is inevitable. Try to use hair cream with low alkalinity. When dyeing hair, some hair care ingredients are usually added, which is the popular hair care dyeing at present-hair care and hair dyeing are carried out at the same time.
Levi believes that the biggest harm of hair dye to hair is that it contains hydrogen peroxide, which not only oxidizes but also bleaches. Before, white hair was dyed into black hair without bleaching, as long as the color was formed. It is popular to dye black hair in different colors, such as yellow and burgundy, which requires special substances, such as ammonia water, to bleach black hair first and then add artificial pigments.
Skin test is very important when dyeing hair.
Dyeing your hair is like making up. If the skin is sensitive, pay attention to safety when dyeing hair. Generally, it is necessary to do a skin test and apply the hair dye to the back of the neck or ears to observe whether there are allergic reactions such as redness and swelling. It will be safer to dye your hair after this test. When dyeing hair, the hair dye is not directly applied to the scalp, generally 1-2mm away from the scalp. If some basic dyes are directly applied to the scalp, it may lead to an increase in dandruff, because the PH value of the skin is weak and acidic, and alkaline substances will make the skin desquamate.
Lai Wei once met a man who had dyed his hair for a long time. Because of his white hair, he needs to dye it once a month The scalp itches for a few days after each dyeing. Many doctors say it is seborrheic dermatitis, which can't be cured. Later, it was discovered that the scalp itch was caused by dyeing hair.
Hair dye contains complex chemical components, which can cause skin allergy, hair quality change or shedding if used improperly. There are many brands of hair dyes on the market, so you'd better consult a barber before using them.
Make-up dyeing is needed 1-2 months after dyeing.
About two months after dyeing, the hair is oxidized by air, water and sunlight. And the pigment particles are constantly losing, so they will fade, just like new clothes. If you wear it too many times, it will naturally fade. Jin Li believes that makeup dyeing should be carried out at this time. Generally, dyeing hair can last for 6-8 weeks and keep the color basically unchanged, or you can experience 16-20 shampoos. You need to replenish it in time after dyeing your hair. When the new hair grows 2-3 cm, you should go to a professional hair salon to supplement it. Make-up dyeing is not only a process of consolidating hair color, but also a process of caring for hair.
References:
Baidu encyclopedia-hair dye