Lub tshuab ntawm kev sib dhos oxidation lus dag nyob rau hauv hais tias nws cov qauv qis dua ntawm cov kab mob hlwb, thiab tau txais cov tshuab hluav taws xob tsis muaj peev xwm ua kom cov tshuaj tiv thaiv cov roj ntsha Studies have shown that the peroxidation of sebum is mainly caused by singlet oxygen, and the singlet oxygen quenching rate constant of squalene in human sebum is much larger than that of other lipids in human skin. extinction tas li. However, it should be noted that although squalene can block lipid peroxidation, the products of squalene, such as unsaturated fatty acids, also have an irritating effect on the skin.
Peroxide squarene tuaj yeem ua lub luag haujlwm tseem ceeb hauv cov kab mob pob txuv. In animal experimental models, it has been established that squalene monoperoxide is highly comedogenic, and the content of squalene peroxide gradually increases under UV irradiation. Therefore, it is suggested that acne patients should pay attention to sun protection, and sunscreens can avoid squalene peroxidation at physiological concentrations caused by ultraviolet rays.
Daim tawv nqaij analyzertuaj yeem siv los kuaj cov nyhuv ntawm cov tshuaj pleev suab. Tus UV duab tau qhia tsaus xiav yog tias siv tshuaj pleev duab tshuaj pleev xim; Yog hais tias lub cev tsoosscreen tau thov, cov duab yog qhov cuam tshuam, zoo ib yam li fluorescent residue.
Lub Sijhawm Post: Apr-29-2022
