1, mica

Mica, crystal, talc and nano-TiO _ 2 may be harmful if used in powder cake or spray, because their tiny particles are easily inhaled by human body and have an impact on the lungs.

Harm to skin: If it goes on for a long time, it may cause lung diseases, such as pneumoconiosis.

2. Mineral oil

Many people think that mineral oil is harmless, but mineral oil is also a product of petrochemical industry, with low cost and easy mass production. Mineral oil is added to skin care products because of its good ductility, which can be used as antistatic agent, softener, solvent and solvent. Although mineral oil can't directly improve the dryness of skin, it can increase the moisturizing feeling and form a thin film on the skin surface, which has a good sealing and moisturizing effect. In addition, mineral oil is insoluble in water, which helps skin care products to be waterproof, sweat-proof and durable.

Harm to skin: One of the major sins of mineral oil is that it will clog pores. Oily or mixed oily skin may cause acne and inflammation. Long-term use can precipitate into the skin, which is cell degeneration.

3. Synthetic spices

In order to enhance the sensory enjoyment and attract people who are ignorant of fragrance and taste, more and more skin care products try to keep up with perfume, so many kinds of chemical spices are added. 95% of the spices added in skin care products are synthetic and contain various chemical components. Although it smells comfortable and pleasant, the chemicals in it are affected by light, temperature, air and metal ions, which will definitely react and stimulate the skin, which is not conducive to skin health for a long time.

Harm to skin: Long-term use of skin care products containing synthetic spices will stimulate human skin, and some even cause skin edema, itching, rash and other symptoms.

4. Benzophenone

Many cosmetics such as sunscreen and lipstick marked SPF contain benzophenone and octyl salicylate, which may cause abnormal hormone secretion. More and more studies have proved that benzophenone may be related to female precocious puberty and male infertility due to low sperm motility. Benzophenone is a common sunscreen ingredient, which can effectively resist harmful ultraviolet rays in the sun.

Harm to the skin: beauty products such as benzophenone-containing sunscreen can be absorbed by the skin and enter the blood circulation. In the blood, benzophenone can imitate the function of estrogen and increase the risk of endometriosis in women.

5. Formaldehyde

Because of its good hydrophilicity, high sterilization efficiency and low price, formaldehyde is often used as a preservative in cosmetics such as shampoo, shower gel, hair styling agent and nail polish. Low concentration of formaldehyde can mainly cause skin allergy, cough, excessive phlegm and nausea. At the same time, formaldehyde can inhibit sweat gland secretion and make the skin dry.

Damage to skin: Formaldehyde may also cause abnormal liver and lung functions and immune functions.

References:

People's Daily Online-10 Cosmetic ingredients are the most dangerous.