Photodegradation of (-)-epigallocatechin-3-gallate in topical cream formulations and its photostabilization.

@article{Bianchi2011PhotodegradationO,
  title={Photodegradation of (-)-epigallocatechin-3-gallate in topical cream formulations and its photostabilization.},
  author={Anna Bianchi and Nicola Marchetti and Santo Scalia},
  journal={Journal of pharmaceutical and biomedical analysis},
  year={2011},
  volume={56 4},
  pages={
          692-7
        }
}
The aim of the study was to examine the photostability of the major catechin of green tea, (-)-epigallocatechin-3-gallate (EGCG), which possesses important antioxidant and skin photoprotective properties. In order to simulate realistic conditions of use of topical preparations, the photolysis studies were performed in model creams (oil-in-water emulsions) containing 1% (w/w) EGCG and exposed to a solar simulator at an irradiance corresponding to natural sunlight. The extent of photodegradation… 
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