Characterizing Roughness: A New Substrate to Measure SPF

In vitro testing for the determination of sun protection is essential for the cosmetics industry. It is fast, relatively inexpensive, and can be used routinely. However, until 2006, only in vivo methods were subject to recommendations or regulations. Since then, organizations such as the Agence Française de Securité Sanitaire des Produits de Santé (AFSSAPS), Colipa and the International Organization for Standardization (ISO) have proposed the development of in vitro methods to replace in vivo methods.

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