Sunscreen compositions

Details Sunscreen compositions Sunscreen compositions

A - Human Necessities

61

K

A61K 8/46 (2006.01) A61K 8/35 (2006.01) A61K 8/40 (2006.01) A61Q 17/04 (2006.01)

Patent

CA 2338935

The present invention relates to compositions suitable for use as sunscreens which comprise a UVA sunscreen active and a carrier suitable for application to the skin. These compositions are substantially free of benzylidene camphor derivatives and provide excellent stability, efficiency, and UV protection efficacy in a safe, economical and aesthetically appealing manner. The compositions have a Sunscreen Efficiency Index of at least about 1.75, a UVA Efficacy Value of at least about 0.5, a UVA Photostability Index of at least about 0.85, a UVB Photostability Index of at least about 0.85, and a Transparency Value of less than about 10. Methods of using the compositions are also disclosed.

L'invention concerne des compositions servant d'écran solaire qui comprennent un agent actif contre les rayons solaires UVA et un support destiné à être appliqué sur la peau. Ces compositions sont sensiblement exemptes de dérivés de camphre de benzylidène et fournissent une stabilité et une efficacité de protection contre les UV optimales, d'une manière sûre, économique et esthétique. Ces compositions possèdent un indice d'efficacité antisolaire d'au moins 1,75 environ, une valeur d'efficacité de protection contre les UVA d'au moins 0,5 environ, un indice de photostabilité UVA d'au moins 0,85 environ, un indice de photostabilité UVB d'au moins 0,85 environ et une valeur de transparence inférieure à environ 10. L'invention concerne également des procédés d'utilisation des ces compositions.

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