L'oreal

Alexandre Cavezza

Maria Dalko

Patrick Pichaud

Michel Neuwels

Simon Trouille

Didier Candau

Stéphane Sabelle

Christian Blaise

Dominique Bernard

Xavier Marat

Karine Lucet-Levannier

Ronak Rughani

Irene Erdelmeier

Julien Hitce

Angelina Roudot

Roger Rozot

Franco Manfre

Christophe Rondot

Béatrice Renault

Véronique Burnier

Elisabeth Picard-Lesboueyries

Gabriela Gurau

Magali Moreau

Valerie Wohlfromm

Robin D Rogers

Giovanni Pietro Rachiero

The instant disclosure relates hair care compositions comprising ionic liquids or ionic mixtures. Ionic liquids or ionic mixtures are combined with a cosmetically acceptable carrier to form ready-to-use hair care compositions. The ionic liquids and the ionic mixtures are formed from; (1) thiolactic acid and/or one or more alkali metal or alkaline earth metal salts thereof; and (2) one or more amine compounds, and/or one or more ammonium cationic compounds, and/or one or more salts thereof. The ionic liquids, the ionic mixtures, and the hair care compositions comprising the ionic liquids or the ionic mixtures, are useful in methods for preventing hair damage, shaping hair, caring for hair, etc.

Hair care compositions comprising thiolactic acid-based ionic liquids or thiolactic acid-based ionic mixtures

The present invention relates to a cosmetic or dermatological composition comprising, in a physiologically acceptable support: a) at least one merocyanine of formula (1) or (2). b) at least one oily phase comprising at least one amide compound of formula (I). The present invention also relates to a non-therapeutic cosmetic process for caring for and/or making up a keratin material, comprising the application, to the surface of the said keratin material, of at least one composition as defined above. The invention also relates to a non-therapeutic cosmetic process for limiting the darkening of the skin and/or improving the color and/or uniformity of the complexion, comprising the application, to the surface of the keratin material, of at least one composition as defined previously. The invention also relates to a non-therapeutic cosmetic process for preventing and/or treating the signs of ageing of a keratin material, comprising the application, to the surface of the keratin material, of at least one composition as defined previously. 

Cosmetic or dermatological composition comprising a merocyanine and an oily phase comprising at least one specific amide compound

The present invention relates to novel C-glycoside compounds of given absolute configuration, to a process for synthesizing them and to compositions containing them. The invention also relates to the cosmetic use of these C-glycoside compounds as agents to stimulate the synthesis of glycosaminoglycans containing a D-glucosamine and/or N-acetyl-D-glucosamine residue, advantageously hyaluronic acid, and/or of proteoglycans, advantageously proteoglycans containing hyaluronic acid, by fibroblasts and/or keratinocytes. The invention also relates to a cosmetic process for treating keratin materials using a composition containing at least one C-glycoside compound according to the invention.

C-glycosides, uses thereof

A subject-matter of the invention is a composition comprising a) at least one ortho-diphenol derivative, b) at least one specific metal derivative and c) at least one basifying agent, a method for dyeing keratinous fibers by treatment of the said fibers using the ingredients a), b) et c) and the use thereof for dyeing keratinous fibers. This hair dyeing method makes it possible to obtain better colorations which are more uniform, chromatic and lasting and which do not detrimentally affect the cosmetic properties of the keratinous fibers, starting from an extract of ortho-diphenols which are in particular natural.

Composition for dyeing keratin fibers, including at least one ortho-diphenol derivative, one particular metal derivative, and one alkalinizing agent

The present invention relates to novel compounds of formula (I) where: The invention also relates to the salts thereof, to the optical isomers thereof, to the cosmetic and pharmaceutical compositions containing same, and to the use thereof to prevent and cosmetically treat the signs of aging on the skin.

Aryl C-xyloside compounds, and cosmetic use

The present invention provides piperidine derivatives of formula (I): salts and optical isomers thereof and cosmetic compositions containing them.

Piperidine derivatives and cosmetic compositions thereof

The present invention relates to the cosmetic use, as an agent for combating wrinkles, especially expression wrinkles, and/or for dencontracting the skin and/or relaxing the features, of at least one piperidine derivative chosen from the compounds of formula (I): and the salts and optical isomers thereof. The invention also relates to novel piperidine derivatives and also to cosmetic compositions containing them.

Cosmetic use of piperidine derivatives

The present invention relates to a cosmetic process for treating wrinkled skin, in particular the skin of the face and/or of the forehead, through a dermo-decontracting effect, comprising the topical application to said skin of a composition comprising, in a physiologically acceptable medium, at least one piperidine derivative chosen from the compounds of formula (I). These compounds make it possible to combat expression wrinkles according to a mechanism of dermo-decontraction. 

Use of piperidine derivatives as dermo-decontracting agents

The present invention relates to compositions that are suitable for topical application to the skin or the scalp, containing, in a physiologically acceptable medium, at least one compound of a given formula. The invention also relates to a cosmetic treatment process comprising the topical application of these compositions and also to novel C-glycoside derivatives.

Compositions suitable for topical application to the skin

The present invention relates to novel C-glycoside compounds of given absolute configuration, to a process for synthesising them and to compositions containing them. The invention also relates to the cosmetic use of these C-glycoside compounds as agents to stimulate the synthesis of glycosaminoglycans containing a D-glucosamine and/or N-acetyl-D-glucosamine residue, advantageously hyaluronic acid, and/or of proteoglycans, advantageously proteoglycans containing hyaluronic acid, by fibroblasts and/or keratinocytes. The invention also relates to a cosmetic process for treating keratin materials using a composition containing at least one C-glycoside compound according to the invention.

A composition, suitable for topical application to the skin, containing at least one benzoisothiazolone of formula (I): Novel benzoisothiazolones of formula (I) and a method of caring for dry and/or mature skin.

Benzoisothiazolone compositions

Methods of improving the appearance of keratinous substances using at least one DHEA derivative such as the skin, hair, eyelashes and/or nails, in particular for preventing or treating cutaneous signs of ageing and/or a faded complexion and/or disorders of pigmentation of the skin or hair and/or drying of the skin and/or hyperseborrhoea and/or imperfections relating to hyperseborrhoea and/or sensitive skin and/or dandruff and/or hair loss and/or canities.

Use of DHEA derivatives on keratinous substances

The invention relates to new processes for preparing 7alpha-hydroxy-dehydroepiandrosterone of formula (1):

Methods for preparing 7alpha-hydroxy-dehydroepiandrosterone

7-Oxo-DHEA derivatives, various of which are themselves novel compounds, are well suited for cosmetically/therapeutically treating adverse conditions/afflictions of a keratinous substrate/material, notably of human skin, hair, eyelashes and nails, to improve the appearance thereof, in particular to prevent or treat signs of aging of the skin and/or a dull complexion and/or skin or hair pigmentation disorders and/or dryness of the skin and/or hyperseborrhoea and/or hyperseborrhoea-related imperfections and/or sensitive skin and/or dandruff and/or natural hair loss and/or baldness.

Growing community of inventors

Les Pavillons Sous Bois, France

Alexandre Cavezza