Unilever Home & Personal Care USA, a Division of Conopco, Inc.

Unilever Home and Personal Care USA, Division of Conopco, Inc.

Chesebrough-Pond's USA Co.

Surajit Mukherjee

Stephan Samuel Habif

Donald W Rick

Bijan Steven Harichian

John Steven Bajor

Carol Annette Bosko

Ronni Lynn Weinkauf

Laurence Boen

Donald Rick

Cosmetic skin care methods of using and process of making carboxyalkylates of branched alcohols and/or alkoxylates thereof and process of making same. The compounds and compositions provide control of sebum secretion from sebocytes, improved oil control and improved skin feel, prevent shine and stickiness, while also providing anti-microbial activity against bacteria associated with acne, as well as providing anti-aging benefits which results in reduced appearance of wrinkles and aged skin, improved skin color, treatment of photoaged skin, improvement in skin's radiance and clarity and finish, and an overall healthy and youthful appearance of the skin.

Skin care cosmetic methods of sebum control using carboxyalkylates of branched alcohols and/or alkoxylates thereof

Cosmetic skin compositions containing a weak carboxylic acid and a random copolymer of ethylene oxide and propylene oxide. The copolymer reduces skin irritation that is sometimes caused by the weak acid active without reducing delivery of weak acids to skin tissues.

Skin cosmetic compositions containing a weak carboxylic acid and random copolymers of ethylene oxides and propylene oxides

Cosmetic skin compositions containing a dextran or maltodextrin and a weak carboxylic acid. Dextran enhances the anti-aging activity of the weak acids and reduces skin irritation that is sometimes caused by the weak acid active.

Skin cosmetic compositions containing dextran or maltodextrin and a weak carboxylic acid

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

Growing community of inventors

Ridgewood, NJ, United States of America

Surajit Mukherjee