UVA

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In vivo persistent pigment darkening method: proposal of a new standard product for UVA

In vivo persistent pigment darkening method:proposal of a new standard product for UVA protection factor determination

D. Moyal*, M. Pissavini , F. Boyer , V. Perier and J. H. Frelon
*L’Ore´al Recherche, 25/29 Quai Aulagnier, 92665 Asnie`res Sur Seine, France, Coty-Lancaster, International Research & Development Center, 2 Rue de la Lujernetta, 98000 Monaco, Pierre Fabre Dermo Cosme´tique, Alle´e Camille - Soula Vigoulet Auzil, 31322 Castanet Tolosan, France and §Fe´deration des Industries et de la Parfumerie, 33 Champs Elysees, 75008 Paris, France  Lire la suite ...

Comparison of Four Different In Vitro Test

Comparison of Four Different In Vitro Test Methods to Assess the UVA Protection Performance of Sunscreen Products

IR. Dippe, E. Klette, T. Mann, K.-P. Wittern, H. Gers-Barlag:   UVA as well as UVB protection are very important for healthy skin. The UVA protection provided by sunscreens is becoming increasingly important as more becomes known about UVA-induced skin damage. To classify sunscreens, UVB protection is measured as the sun protection factor (SPF), for instance according to the COLIPA method. The SPF has been labelled on sunscreens for several decades and consumers know how to use it. However, uncertainty as to the measurement, calculation and labelling of UVA protection has led to products displaying different values or symbols for UVA protection throughout the world. In Europe as well as in the United States there is no officially accepted method available to determine the degree of UVA protection.   Lire la suite ...

Method for the In vitro determination of UVA protection provided by sunscreen products

Method for the In vitro determination of UVA protection provided by sunscreen products

Guideline 2007a Prepared by the COLIPA In vitro Photoprotection Methods Task Force

Sun protection products have long protected against sunlight-induced erythema with the level of performance indicated by the sun protection factor (SPF). However, since the SPF number is influenced primarily by UVB wavelengths, it is not necessarily a sufficient indicator of a sunscreen product’s protection against UVA exposure.  Lire la suite ...