The Procter Gamble Company

Margaret Ann O'Donoghue

Paul Robert Tanner

Christopher Irwin

Timothy Woodrow Coffindaffer

Larry Richard Robinson

Robert Bao Kim Ha

Patricia Ritenour Hertz

Stable skin care compositions comprising dehydroacetic acid and a dermatologically acceptable carrier. The dermatologically acceptable carrier comprises at least one oil, said oil having a solubility in water of about 5% or less and a solubility parameter of from about 7 to about 15, and the dehydroacetic acid is distributed primarily into said oil. The compositions have a pH of about 4.5 and below.

Low pH skin care compositions containing dehydroacetic acid

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.

Sunscreen compositions

The present invention relates to compositions suitable for use as sunscreens which provide excellent stability, efficiency, and UV protection efficacy in a safe, economical and aesthetically appealing manner (on-skin transparency, low skin irritation). Methods of use for these compositions are also disclosed. The compositions comprise:

The present invention relates to compositions which are useful for providing protection to the skin of humans from the harmful effects of ultraviolet radiation. In particular the present invention relates to compositions having improved chemical, physical, and photostability. These compositions comprise from about 0.1% to about 10% of a dibenzoylmethane sunscreen compound, from about 0.1% to about 20% of a surface-treated zinc oxide, and a carrier suitable for application to the skin.

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Monroe, OH, United States of America

Margaret Ann O'Donoghue