Chesebrough-Pond's USA Co., Division of Conopco, Inc.

Chesebrough-Pond's USA Co.

Donald Rick

Uma Santhanam

John Brian Bartolone

Ronni Lynn Weinkauf

Stephan Samuel Habif

Laura Rose Palanker

Surajit Mukherjee

Gluconolactone or glucarolactone in cosmetic skin care compositions, as anti-irritants, to reduce skin irritation, which may be intrinsic skin irritation or irritation caused by hydroxy acids or certain retinoids.

Gluconolactones and glucarolactones as anti-irritants in cosmetic

The inventive compositions contain an oil-in-water and a water-in-oil emulsion, each buffered to a specific pH, so that the difference in pH values of the two emulsions is at least two units. The molecular mixing is minimized by selecting suitable oil and oil phase in a water-in-oil emulsion. The change in pH is further minimized by buffering each emulsion. The particular advantage of the inventive compositions is the ability to separate within a single composition, with minimal intermixing, active compounds which require different pH environments for stability and/or optimum efficacy.

Stable cosmetic compositions with different pH emulsions

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New Milford, NJ, United States of America

Donald Rick