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Updated: Jun 21, 2026

Characterization of Molecular Mechanisms of In vivo UVR Induced Cataract
Published on: November 28, 2012
In vitro UV-A protection factor (PF-UVA) of organic and inorganic sunscreens
C Couteau1, S El-Boury, E Paparis
1Faculty of Pharmacy, Université de Nantes, Nantes Atlantique Universités, Nantes, France.
Abstract:
The objective of this research was to evaluate the efficacy of various sunscreen agents incorporated into an O/W emulsion. Within the scope of this study only an in vitro method was used. According to selected filter UVA, we can obtain more or less effective creams. With the seven available filters, we can cover a range of values between 2 and 12. In addition to these seven filters absorbing in UVA range, variously coated titanium dioxide and zinc oxide were tested as well. So it appears that the best organic UVA filter is anisotriazine at 10% (PF-UVA = 11.82). Its effectiveness is comparable with that of the titanium dioxide forms used at 25%. Photostability in Suntest showed that the more photostable UVA-filters are the benzophenones.
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