Methods for boosting UVA photo-protection using antioxidants

US10729633B2 · kind B2 · utility

Assignee

• L'Oreal · FR

Inventors

• Zhi Pan · Fort Lee, US
• Anne-Laure Suzanne Bernard · New York, US
• Yang Deng · Foster City, US

Key dates

• Filing date: Mar 29, 2018
• Grant date: Aug 4, 2020
• Expiry date: Mar 29, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/522
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Methods for providing broad spectrum photo protection to skin using antioxidants that provide UVA protection to skin are described. The methods include topically applying a cosmetic composition comprising: (a) at least one antioxidant having an Oxygen Radical Absorbance Capacity (ORAC) of at least 10,000 μmol TE/g and a Hydroxyl Radical Absorbance Capacity (HORAC) of at least 2,600 μmol GAE/g; (b) at least one organic UV filter; and (c) a cosmetically acceptable carrier; wherein the cosmetic composition provides an increase in UVAPPD PF of at least 30% relative to an otherwise identical cosmetic composition without the antioxidant(s) of (a). The disclosure also relates to the cosmetic compositions useful in the described methods.