The SPF (Sun Protection Factor) allows the measurement of the level of protection that the product offers in the UVB part of the spectrum. In addition to SPF, a product can also claim water resistance properties.
Like the SPF determination, there are also several methods for assessing the water resistance of products. Depending on the marketing area, the method differs.
2 main methods for testing the water resistance of a product containing sun protection:
Which method to choose?
The method to be applied is defined according to the marketing area.
*P2 : 16.1 ± 2.4 ; P3 : 15.7 ± 2.0 ; P5 : 30.6 ± 6.9 ; P6 : 43.0 ± 12.0 ; P8 : 63.1 ± 19.2
Internationally, ISO is currently working on a standard to assess the water resistance of solar products.
On French territory, AFNOR is actively participating in the drafting of this new standard which could end up replacing the 2005 Colipa Guidelines. Intertek is integrated into this working group in order to bring, among other actors, its expertise on this topic.
Intertek Clinical Studies, in Paris, confirmed expert for over 25 years in the field of clinical cosmetic studies and medical devices.
http://www.intertek-france.com/etudes-cliniques
Intertek France – Clinical Research Department
48 Rue de la Colonie
75013 Paris – France
Email: france@intertek.com
Phone: +33 (0)2.78.94.03.78
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