Back to results
US 10,245,283 B2Granted
Compositions and methods to affect skin irritation
AssigneesAlumend, LLC, Wavepharma, LLC
InventorsRonald E. Utecht, Therese M. Downey, Miri Seiberg, Stanley S. Shapiro, Jack V. Foster, Jr.
Life of this patent
Estimating the term…
Abstract
Compositions are described that contain treated chitosan, modified chitosan and/or modified and treated chitosan for use in formulations for skin, hair and nails, and in compositions and methods of reducing topical agent-induced skin irritation and inflammation.
Claims3
A sunscreen composition comprising:
- (a) at least one sunscreen agent that causes skin irritation and/or skin inflammation and/or IL-1α secretion, and (b) at least one chitosan covalently modified with an octane sulfonic acid via a sulfonamide linkage, wherein the composition provides a reduction in skin irritation and/or a reduction in skin inflammation and/or a reduction in irritant-induced IL-1α secretion after contact with the composition compared with a control composition comprising the sunscreen agent but not the chitosan.
Dependencies are inferred from the claim text.