Abstract:

Cyclodextrins are cyclic oligosaccharides that are widely used to improve the performance of bioactive compounds by encapsulation, such as food additives and ingredients or pharmaceutical compounds. Currently, cosmetic industry is constantly striving for better efficacy based on safety. However, the problems of poor water solubility and oxidative decomposition for many active ingredients have greatly limited their development in cosmetic products. Cyclodextrins can protect these compounds against light and oxidative degradation and provide host-guest supramolecular complexes having controlled release properties by molecular encapsulation, enhancing the water solubility and bioavailability. Cyclodextrins are green, non-toxic and degradable and can be used as a suitable delivery vehicle in cosmetics and many other fields. Therefore, the technology by using cyclodextrin as a carrier has also received a lot of attention in the cosmetic field. In recent years, flavonoids and polyphenols have received much attention in the cosmetic industry because of their good whitening and antioxidant effects. Essential oils have also drawn much attention from consumers. In this review, the preparation of cyclodextrin inclusion complexes was introduced, as well as their characterization and their application on many cosmetic ingredients such as polyphenols, flavonoids and essential oils.

Key words: cyclodextrin, inclusion complexation, application, cosmetic