L'OREAL Patent: C-Glycoside Keratin Treatment
Summary
USPTO granted Patent US12606534B2 to L'OREAL covering C-glycoside derivatives for cosmetic treatment of keratin materials including skin whitening, lightening, and depigmenting applications. The patent names Marie-céline Frantz, Maria Dalko, and Alexandre Cavezza as inventors with claims directed to compounds of formula (I) where R is as defined and S* is a mono or polysaccharide. The patent contains 6 claims and covers cosmetic compositions for non-therapeutic skin treatment uses.
What changed
USPTO issued Patent US12606534B2 to L'OREAL, covering methods for cosmetic treatment of keratin materials using acid, ester, or amide C-glycoside derivatives and cosmetic compositions containing them. The patent specifically claims compounds of formula (I) with R substituents and mono or polysaccharide groups (S*), targeting applications in skin whitening, lightening, and depigmenting. CPC classifications span A61K 8/602, C07D 307/20, C07D 309/10, C07D 407/12, A61Q 19/02, and A61Q 5/08.
For cosmetics manufacturers developing C-glycoside-based skin treatment products, this patent establishes intellectual property boundaries around specific compound structures and cosmetic applications. Companies should conduct freedom-to-operate analyses before commercializing similar products, as the granted claims provide L'OREAL with enforceable exclusivity over the claimed methods and compositions through the patent's term.
Archived snapshot
Apr 21, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Method for the treatment of keratin materials using acid, ester or amide C-glycoside derivatives, and cosmetic composition containing same
Grant US12606534B2 Kind: B2 Apr 21, 2026
Assignee
L'OREAL
Inventors
Marie-céline Frantz, Maria Dalko, Alexandre Cavezza
Abstract
The present invention relates to a method for the cosmetic treatment of keratin materials, in particular the skin, comprising the application of a composition to the keratin materials, such as the skin, said composition comprising a compound (I), wherein R is as defined in the description and S* is a mono or polysaccharide. In particular, the invention relates to the non-therapeutic cosmetic use of at least one compound of formula (I) as an agent for whitening, lightening and/or depigmenting keratin materials, such as the skin.
CPC Classifications
A61K 8/602 C07D 307/20 C07D 309/10 C07D 407/12 A61Q 19/02 A61Q 5/08
Filing Date
2017-11-07
Application No.
16347315
Claims
6
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Parties
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