Whitening plant extract

2013-01-21 classification: efficacy 1 person commented that the mechanism of skin whitening is mainly to inhibit the production of melanin in the process of skin melanin production and metabolism The inhibition mechanism of melanin can be divided into intracellular inhibition and extracellular inhibition Intracellular inhibition refers to the inhibition of melanin formation by inhibiting the activity of tyrosinase, the main rate limiting enzyme, or the synthesis of tyrosinase Extracellular inhibition refers to the inhibition of melanin formation by inhibiting endothelin-1 and endothelin-2 At present, arbutin and flavonoid are the most widely used plant extracts in cosmetics industry at home and abroad β - arbutin, chemical name is 4-hydroxybenzene - β - d-glucopyranoside It is a kind of natural active substance (extract of arbutin leaves) isolated from plants It can penetrate into the skin rapidly, effectively inhibit the activity of tyrosinase in the skin, block the formation of melanin, reduce the content of melanin in the cell, reduce the deposition of skin pigment, so as to remove the spots and freckles β - arbutin is the most safe and effective whitening material Therefore, it can be used to whiten the skin, lighten the spots, repair the dull and uneven skin color, prevent the formation of freckles, even improve the process of sunburn spots and regulate the formation of pigment Flavonoids are mainly found in plants, which can remove free radicals from skin, promote metabolism, reduce melanin deposition and moisturize skin The flavonoids extracted from licorice have many functions in cosmetics Zhang Zhidong et al Showed that licorice flavonoids can penetrate into the skin and maintain high activity, and effectively inhibit the activity of many enzymes in the process of melanin formation At the same time, glycyrrhizin also has the effect of preventing skin roughness and anti-inflammatory Therefore, it is a multi-functional plant whitening component, which is worth further research and development.