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Copyright @ Pol J Cosmetol
Pol J Cosmetol 2014, 17(3): 207-212pl  Selected plant extracts with characteristics of brightening skin hyperpigmentationMonika Morąg, Marzena Glinka, Iwona Jokiel Społeczna Akademia Nauk w Łodzi Summary Large interest in cosmetic preparations intended for the care of skin with hyperpigmentation creates a need for continuous improvement and development of new cosmetic formulations. A rich source of biologically active substances with whitening properties are numerous species of plants. Their use in the form of plant extracts makes it possible to achieve much better results than using separate active compounds. Bioactive chemical constituents of plant extracts inhibit the synthesis of melanin at different stages. Many of them are known as inhibitors of tyrosinase, the key regulatory enzyme of melanogenesis (e. g. glabridin, liquiritin, mulberroside F, arbutin, aloesin, ellagic acid, kuraridin), while others are responsible for blocking the transfer of melanosomes to keratinocytes or reducing the tyrosinase mRNA expression (e. g. imperatorin). This paper presents selected plant extracts and their brightening properties. The following study results suggest that extracts and contained in them active components can be successfully used as effective brightening components in cosmetic products for skin with hyperpigmentation. Key words: plant extract, melanin, tyrosinase inhibitor, typer-pigmentations |