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Can hair dye cause skin allergy

Can hair dyeing cause skin allergy? Hair dyeing is generally safe, but most hair dyes are chemical agents with complex ingredients, which may cause unnecessary troubles and even cause potential life-threatening risks. Therefore, we should be vigilant.

1. Skin allergic reaction is the most common adverse reaction of hair dyeing. Some people may not have allergic reactions at the initial stage of hair dyeing. After several times of hair dyeing, allergic reactions may occur. The longer the use time, the higher the probability of allergy.

2. Cause the change of hair quality. Hair dyeing process will affect the imbalance of moisture in hair, and a large number of protein denaturation and reduction. As a result, the hair becomes brittle, the fiber breaks, and the natural beauty of softness, toughness and luster is lost. The more times you dye your hair, the more serious the damage will be.

3. Cause hair to fall off. The acute and chronic stimulation of hair dye can cause the inflammation of scalp and hair follicle. After a long time, it will cause the atrophy of hair follicle, and the hair will change from thick to thin, and finally fall off.

4. Absorption of toxic substances can damage liver and kidney function. It is mainly found in metal hair dyes and some synthetic organic hair dyes, such as lead acetate, silver nitrate, benzene, naphthalene, phenols, etc.

To prevent the potential harm of hair dyeing, we should pay attention to the following points: 1. 2. Choose a good hair dye. 3. Do not apply the hair dye on the skin when dyeing hair. In order to prevent it from spreading on the skin, a layer of Vaseline should be applied on the skin for protection. 4. Don't dye your hair when the scalp is inflamed and damaged. The damaged skin can increase the absorption of hair dye. 5. For people with special constitution, safe hair dye may be potentially harmful to him or her, and regular health examination is necessary.