Sharon K Struewing

US Patent:

56543417, Aug 5, 1997

Filed:

Apr 11, 1995

Appl. No.:

8/420060

Inventors:

Sharon Struewing - Cincinnati OH

Assignee:

The Andrew Jergens Company - Cincinnati OH

International Classification:

A61K 3114
A61K 3101

US Classification:

514642

Abstract:

A low pH skin-treatment composition employs cationic surfactants generally known to be skin irritants and a fatty acid, together with a hydrocarbon component in an oil-in-water emulsion. The addition of fatty acid to the cationic surfactant appears to form a complex which prevents the cationic surfactant from irritating the skin and at the same time substantially reduces pH of the composition. The resulting composition is not skin irritating, and reflects a pH of about 2-4. The composition may be used to restore pH of skin after exposure to alkaline compositions, and as a vehicle for the administration of active agents having an acidic pH.

US Patent:

20210128896, May 6, 2021

Filed:

Oct 28, 2020

Appl. No.:

17/082522

Inventors:

- Tokyo, JP
Sharon STRUEWING - Lebanon OH, US

Assignee:

KAO CORPORATION - Tokyo

International Classification:

A61M 37/00
A61M 11/00
A61K 9/70

Abstract:

The present invention relates to a method for treating skin, comprising the following step A) and then step B):