L'oreal

Societe Anonyme Dite: L'oreal

Jean F Grollier

Claude Dubief

Jean Cotteret

Chantal S Fourcadier

Georges Rosenbaum

Didier Garoche

Daniele Cauwet

Claire Fiquet

Gerard Lang

Serge Forestier

Jean Aulnay Mondet

Christine DuPuis

Josiane Allec

Andree Bugaut

Philippe Michel Manoury

Arnaud De Labbey

Patrick Andrillon

Alain Caudet

Marie Francoise Bosq

Guy G Vanlerberghe

Henri Sebag

Alex M Junino

Braham Shroot

Herve Richard

Alain R Genet

Andre Deflandre

Patrick Darmenton

Christian Monnais

Annie G Madrange

Michel Peignier

Lyonel Peritz

Francois Chizat

Isabelle Richoux

Sophie Plessis

Michele Chailley

Michele Lagoutte

Monique Courtois

Process for preserving the dyeing capacity of 5,6-dihydroxyindole or of of its derivatives corresponding to the formula (I);

Process for preserving the dyeing capacity of 5, 6-dihydroxyindole and of its and derivatives in an aqueous medium, composition and dyeing process

The invention relates to a composition used for the treatment of keratin substances which contains at least one amphoteric polymer containing units A and B randomly distributed in the polymer chain, where A denotes a unit derived from a monomer containing at least one basic nitrogen atom and B denotes a unit derived from an acid monomer containing one or more carboxyl or sulphonyl groups, or alternatively A and B can denote groups derived from zwitterionic carboxybetaine monomer, A and B can also denote a cationic polymer chain containing secondary or tertiary amine groups or quaternary ammonium groups, in which chain at least one of the amine groups carries a carboxyl or sulphonyl group joined via a hydrocarbon radical, or alternatively A and B form part of a chain of a polymer with alpha, beta-dicarboxyethylene units, in which one of the carboxyl groups has been reacted with a polyamine containing one or more primary or secondary amine groups, and at least one cationic polymer of the polyamine or poly-(quaternary ammonium) type, containing amine or ammonium groups in the polymer chain or joined to the latter.

Composition for the treatment of keratin fibers, based on amphoteric

1. Combination intended to induce and to stimulate the growth of hair and to reduce its loss, characterized in that it comprises:

Combination of derivatives of pyrimidine and of hydrocortisone for

The invention relates to a photostable screening cosmetic composition for protecting human skin against UV rays, comprising, in a cosmetically acceptable substrate containing at least one fatty phase, 1 to 3% by weight of 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane and at least 4.5% by weight of p-methylbenzylidenecamphor, the weight ratio of p-methylbenzylidenecamphor to 4-(1,1-dimethyl-ethyl)-4'-methoxydibenzoylmethane being higher than or equal to 3. It also relates to a process for protecting the skin against UV radiation and to a process for stabilizing 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane against UV radiation.

Photostable cosmetic composition containing a UV-A screen and a UV-B

A composition for inducing and stimulating hair growth and/or reducing hair loss comprises at least one alkylpolyglycoside and at least one compound having formula (I) in a physiologically acceptable medium. ##STR1## In compound (I) , R.sub.1 represents the group ##STR2## where in R.sub.3 and R.sub.4 may be selected from hydrogen, alkyl, alkenyl or cycloalkyl. R.sub.3 and R.sub.4 may also form a heterocycle with the nitrogen atom to which they are bonded. The heterocycle may be an aziridinyl, azetidinyl, pyrrolidinyl, piperidinyl, hexahydroazepinyl, heptamethyleneimine, octamethyleneimine, morpholine or 4-low alkylpiperazidinyl group. These heterocycles may be substituted at the carbon atoms by one to three alkyl, hydroxy or alkoxy groups. R.sub.2 is selected from hydrogen, alkyl, alkenyl, alkylalkoxy, cycloalkyl, aryl, alkylaryl, arylalkyl, alkylarylalkyl, alkoxyarylalkyl and/or haloarylalkyl. The physiologically acceptable acid addition salts of the compound may also be used.

Alkylpolyglycoside and pyrimidine derivative based composition for

Combination of pyrimidine derivatives and retinoids, as separate components, for inducing and stimulating hair growth and reducing its loss. Combination designed to induce and stimulate hair growth and reduce its loss, characterized in that it comprises in separated form: a) a component (A) containing at least one retinoid in a physiologically acceptable medium, and b) a component (B) containing at least one pyrimidine derivative in a physiologically acceptable medium.

Combination of pyrimidine derivatives and retinoids, as separate

The invention relates to a photostable filtering emulsion containing in association, in the aqueous phase, a photostable filter with a wide absorption band constituted by partially or totally neutralized benzene-1,4-[di(3-methylidene-10-camphosulphonic)] acid, and in the oily phase a photostable system which filters the UV-A rays containing at least one of the following compounds: N-(2-ethylhexyl)-3-[(3'-methoxy-4'-n-butoxy)benzylidene]-10-camphosulphona mide (compound 2), 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane (compound 3) and 4-isopropyldibenzoylmethane (compound 4), these two latter compounds 3 and 4 being photochemically stabilized by at least one fat-soluble filter of .lambda..sub.max less than 330 nm chosen from the following benzylidene camphor derivatives: benzylidene camphor (compound 5), p-methylbenzylidene camphor (compound 6), N-(2-ethylhexyl)-4-(3'-methylidene camphor)benzene sulphonamide (compound 7) and 3-methoxy-4-n-butoxybenzylidene camphor (compound 8). This composition is intended to protect the skin from UV rays of wavelengths between 280 and 380 nm.

Photostable filtering cosmetic composition

Process for preserving the dyeing capacity of 5,6-dihydroxyindole or of its derivatives corresponding to the formula (I): ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which are identical or different, denote hydrogen or a C.sub.1 -C.sub.4 lower alkyl, R.sub.1, R.sub.2 and R.sub.3 denoting hydrogen when R.sub.4 denotes alkyl in an aqueous medium, characterized in that the pH of the aqueous medium is adjusted to a value pH.sub.C of between 5 and 10 by employing a pH-regulating agent containing two components (A) and (B), the component (A) being chosen from pH-regulating agents which have a dissociation constant K.sub.CA in aqueous solution at 25.degree. C., such as pk.sub.CA, that is:

Process for preserving the dyeing capacity of 5, 6-dihydroxyindole and

The invention relates to a transparent cosmetic composition that protects the human epidermis, containing, in a cosmetically acceptable vehicle, by way of an agent that reflects infrared radiation, 0.5 to 10% by weight of titanium dioxide flakes of dimensions between 1.5 and 25 microns, dispersible in the cosmetic medium used, possessing a reflectance (R) of infrared radiation equal to at least 45%, and of which a 2% strength dispersion in vaseline possesses an optical transmission in the visible of at least 85%. This cosmetic composition can also contain 0.5 to 20% by weight of UV-A, UV-B or broad-band screening agents.

Transparent cosmetic composition that reflects infrared radiation based

A composition comprising a combination intended to induce and to stimulate hair growth and to reduce its loss, characterized in that it comprises:

Combination of derivatives of 1,8-hydroxy and/or acyloxy anthracene or

Cosmetic composition designed to maintain the hair in place, containing, in a cosmetically medium, at least one oxazoline polymer of formula (I): ##STR1## in which R.sub.1 denotes a C.sub.1 -C.sub.4 lower alkyl radical and n has a value such that the molecular weight is equal to at least 10,000 and at least one 2-hydroxy-4-methoxybenzophenone-5-sulphonic acid or its cosmetically acceptable salts.

Cosmetic composition for maintaining the hairstyle containing an

The present invention relates to a method for dyeing keratinous fibers, characterized in that the following are applied to the fibers:

Method for dyeing keratinous fibres using a monohydroxyindole or

The invention relates to compositions, which are stable on storage, of certain benzoquinone and naphthoquinone dyestuffs in an anhydrous solvent containing a non-ionic surface-active agent.

Composition based on quinone dyestuffs for use in hair dyeing and

Use of 2-hydroxy-4-methoxybenzophenone-5-sulphonic acid or its salts of protecting the hair against environmental attacking agents, and especially against light, and process for protecting the hair using this compound. Use for preserving the mechanical properties of the hair from degradation by environmental attacking agents, and especially by light, of at least 0.3% by weight of 2-hydroxy-4-methoxybenzophenone-5-sulphonic acid, in a cosmetically acceptable aqueous, alcoholic or aqueous-alcoholic vehicle. The acid is optionally salified with a metal hydroxide, ammonia solution or an amine.

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Paris, France

Jean F Grollier