1, "p-hydroxybenzoate": preservative It is called "necessary devil" by chemists, which will form imperfect cuticle, accelerate cell aging, affect DNA and hinder the efficacy of cosmetic ingredients. Preservatives were also found in breast cancer samples.
2. "Sodium dodecyl sulfate": foam components and foaming items in makeup remover cleanser? Strong cleaning function, high foaming power and low price, but due to excessive degreasing power, the skin will be drier, rougher and more red and swollen, and the skin resistance will be reduced.
3. Fruit acid "hydroxide acid": whitening and freckle removing component? Long-term use makes the stratum corneum thinner and the skin loses its protective ability.
4. Placenta/collagen/elastin: animal extracts, macromolecular substances, which are difficult to be absorbed by the skin, may have the opportunity to infect other viruses.
5, steroid hormones: lead to changes in skin pigment.
6, heavy metals (such as lead, arsenic, mercury, etc. ): Deposited in the liver and kidneys, leading to nervous system disorder. ?
Extended data:
The ingredients of ordinary cosmetics generally contain alcohol, which is actually very harmful to our skin.
1, alcohol has super penetrating power, which can penetrate into cells, make them protein coagulate and denature, thus dehydrate cells, and the skin will gradually lose elasticity.
2. Alcohol is highly volatile, which takes away the heat and moisture of the skin at the same time, reducing the natural moisturizing ability of the skin and purchasing immunity, resulting in dry and rough skin, exuberant sebum secretion and large pores. The skin will age faster.
3. After the cosmetic containing alcohol is applied to the skin, it will produce a photosensitive reaction, which will lead to the aggravation of skin pigment and produce irreversible spots.
4. Because of the adaptability of cells, after long-term use of cosmetics containing alcohol, skin cells will rely on alcohol and reject cosmetics without alcohol.
5, alcohol will paralyze cells, making it difficult for cells to distinguish the advantages and disadvantages of nutrients, thus absorbing some harmful substances to the skin, such as lead, mercury and other harmful substances, making the skin no longer healthy. So remind everyone that it is best not to buy alcoholic cosmetics.
References:
Baidu Encyclopedia Skin Care Products _