The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2017
Filed:
Jun. 26, 2014
L'oreal, Paris, FR;
Jean-Marc Sabatier, Rousset, FR;
Zhi Pan, Ridgewood, NJ (US);
L'OREAL, Paris, FR;
Abstract
A tetrapeptide having antioxidant activity is provided. The tetrapeptide has a structure comprising, in amino acid sequence from N-terminus to C-terminus: tryptophan-X-tyrosine-X; wherein X is arginine, lysine, histidine or any positively-charged amino acid derivative such as 5-hydroxylysine, ornithine, 2,4-diamino-butyrate and 2,3-diamino-propionate. Each amino acid of the sequence or its Homo-amino acid derivative is independently of the D configuration (D-stereoisomer) or of the L configuration (L-stereoisomer), and the C-terminal comprises one selected from the group consisting of carboxyl (—COOH), and carboxamide (—CONH). A composition stabilized to oxidation or having antioxidant activity and a method for attenuating effects of free radicals on a keratinous material are also provided.