Some people are born with premature gray hair, which affects their appearance, so most people will dye their hair to prevent premature gray hair. However, hair dyes contain many chemicals. If you dye your hair too frequently, it is very likely to cause cancer. In addition, your hair will become drier after dyeing, and the hair quality will become worse and worse. So, will dyeing make your hair white? Does hair dye make it gray? There are many reasons for gray hair. Generally speaking, hair dyeing will not cause your hair to turn gray. Gray hair is caused by the reduction of melanin particles in the medulla and cortex of the hair or their filling with air. Under normal circumstances, there are abundant blood vessels in the hair papilla, which provide sufficient nutrition to the hair papilla and hair bulb, so that melanin granules can be synthesized smoothly. Gray hair occurs when the formation of melanin particles in the hair papilla and hair bulb is obstructed, or when they are formed but cannot be transported to the hair due to some factors, causing the melanin particles in the hair medulla and cortex to decrease or disappear. Is hair dye prone to allergies? Hair dye allergy is an allergic dermatitis caused by hair dye. In mild cases, symptoms include redness, itching, and burning pain of the scalp. In severe cases, the scalp, neck, and face will swell, blisters, yellow fluid, and even suppurative infection will occur. Hair dyes contain a chemical called "p-phenylenediamine", which can easily cause damage to human skin. The more frequently you dye your hair and the closer the chemical reagents come into contact with your scalp during dyeing, the greater the harm to your body and the greater the chance of developing an allergic reaction to hair dye. Among people who are allergic to hair dyeing, it is more common to dye gray hair black and cause allergies, cancer and other diseases, while the probability of disease occurring among young people who dye their hair in colored colors is relatively lower. Colored hair dyes are often done by highlighting, which rarely comes into contact with the junction of the hair roots and the scalp, so hair dyes are relatively less harmful to people. For middle-aged and elderly people, dyeing their gray hair black is often done in a short period of time. Their skin absorbs the hair dye year after year, and their physical constitution is relatively poor, so they are more likely to be allergic to hair dye. Causes of hair color fading after dyeing As the saying goes: You should die with understanding! Although hair color fading after dyeing is inevitable, the reason for hair color fading after dyeing is probably something that many girls need to understand urgently. Without further ado, let’s take a look at the reasons why hair color fades after dyeing! 1. Flushing relationship According to research, 80% of hair color loss is caused by rinsing water during shampooing and the chemical ingredients in the shampoo we use that dye the hair. It can be said that water is our number one enemy that we cannot resist after dyeing our hair. 2. Seasonal relationship It is normal for the color to fade slightly after dyeing your hair, and the degree of fading is actually related to the season. The temperature is high and the sun is strong in summer, so people wash their hair more often. Therefore, the durability of hair color in summer will be relatively weakened. 3. External factors Our daily hair combing, pursuit of fashion and beauty in perming, and the influence of surrounding air quality may all cause dyed hair to fade. |
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