What preservatives are commonly used in cosmetics? Will it be harmful to your health?

Preservatives in cosmetics are sorted by frequency of occurrence:

Methyl hydroxybenzoate > diazoalkyl urea > phenoxyethanol >: methyl isothiazolinone (MIT) >: butyl iodopropargyl alcohol carbamate >: propyl 4- hydroxybenzoate > DMDM hydantoin >: methyl chloroisothiazolinone >: 2- bromo -2- nitropropane-1, 3- diol >: imidazolyl urea. & gt potassium sorbate >; Benzyl alcohol > sodium benzoate.

Unusual preservative components: chlorophenyl glycol ether, quaternary ammonium salt-15, sodium dehydroacetate.

Methyl nipagin, also known as nipagin ester, is the most commonly used preservative, and 90% of cosmetics contain this preservative. At present, it is considered that this preservative is less irritating than other preservatives, but it is also allergic. At the same time, methyl paraben may react with UVB ultraviolet rays on the skin, thus increasing the risk of skin aging.

Phenoxyethanol is a preservative with low skin sensitivity and is also widely used in cosmetics. In many formulations of cosmeceutical products, phenoxyethanol is the only preservative, and polyol * * * with antibacterial effect plays an antiseptic role. However, it does not mean that it is suitable for everyone. The "TRPV 1 sensor" which can affect human skin cells (the structure used by skin to sense the changes of external environment) causes "heat sensation" or slight "pain", which is irritating to eyes. The limited use concentration in cosmetics is as high as 1%.

Methyl isothiazolinone (MIT) may cause allergy.