Hair dye
1 How long can I dye my hair again?
More than 6 months is the safest.
Most hair dyes contain artificial pigment particles and molecular oxygen emulsion, and 90% hair dyes also contain nitrobenzene, aniline and other chemical components, which will do some harm to the scalp and the health of the hair. Therefore, we must pay attention to controlling the interval of hair dyeing, giving the body and scalp enough time to detoxify and repair damaged cells. Generally, the most healthy and safe frequency should be more than 6 months.
Once every three months is the best.
Hair will keep growing, and the color of hair will be different from that of dyed hair, which will affect the overall beauty. 1-2 months is not obvious at first, but by 3 months, the hair color contrast is obvious, so many people make up the dye every 3 months.
Can frequent hair dyeing cause cancer?
The International Agency for Research on Cancer has evaluated the relationship between hair dyeing and cancer, and there is not enough evidence to prove that hair dyeing can cause cancer. However, many raw materials of hair dyeing products contain carcinogenic and allergic chemicals, and long-term frequent hair dyeing will really damage scalp and hair quality.
Is it easy to decolorize after dyeing hair?
I just dyed my hair, because the pigment is still unstable. If I wash my hair that day, it may fade slightly. After washing for 3-4 times, the hair color will be relatively stable, and frequent shampooing will not lead to fading.
Attention! Don't wash your hair on the day of hair dyeing, because the oil secreted by the scalp can form a protective film to reduce the damage of hair dye to the scalp.
4 warm tips
The damage degree of hair dyeing to scalp is related to the product and the hair color you want to dye. The color you want to dye spans more than 3 shades from your original hair color, that is to say, the lighter the color you want to dye, the greater the damage to your hair.