3. Determining the effectiveness of sun protection products
If we look at the history of methods for determining the efficacy of PPSs, we see that in vivo and in vitro methods were developed simultaneously, in the 1950s (some twenty years after the first PPSs were marketed), and that the problem that has arisen since then is one of correlation between the two, a problem that is still much talked about today...
3.1 Methods for determining the Sun Protection Factor (SPF)
The Sun Protection Factor (SPF) is currently considered the universal indicator of the level of protection offered by a PPS, mainly in the UVB range. Displayed on PPS packaging (table 2 ), it enables...
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Determining the effectiveness of sun protection products
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Bibliography
- (1) - Protection solaire. Recommandations concernant les conditions d'étiquetage des produits de protection solaire. - http://ansm.sante.fr
- (2) - Sécurité des produits cosmétiques. Produits solaires....
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