Cosmetic use of bifidobacterium species lysate for the treatment of dryness

Abstract

Cosmetic use of an effective amount of a lysate of at least one microorganism of the genus Bifidobacterium species and/or one of its fractions in treating and/or preventing dryness and/or associated disorders of a keratinous substance.

1 . A cosmetic method for treating and/or preventing dryness and/or associated disorders of a keratinous substance comprising administering to a subject an effective amount of a lysate of at least one microorganism of the genus  Bifidobacterium  species and/or one of its fractions. 
   
   
       2 . The method according to  claim 1 , in which the said microorganism is intended to prevent or treat dry skin. 
   
   
       3 . The method according to  claim 1 , in which the said microorganism is intended to prevent and/or reduce the wrinkles related to cutaneous dryness. 
   
   
       4 . The method according to  claim 1 , in which the said microorganism is intended to improve the comfort of dry skin and a dry scalp. 
   
   
       5 . The method according to  claim 1 , in which the said microorganism is intended to combat the dull and/or lifeless appearance of the skin as a consequence of it drying out. 
   
   
       6 . The method according to  claim 1 , in which the said microorganism is intended to prevent and/or treat drying of the skin as a consequence of an application of a chemical product and/or the carrying out of a peeling or of a shaving operation. 
   
   
       7 . The method according to  claim 1 , in which the said microorganism is intended to prevent or treat the expression of signs of weakness of keratinous fibres. 
   
   
       8 . The method according to  claim 1 , in which the microorganism of the genus  Bifidobacterium  species is selected from the group consisting of  Bifidobacterium longum, Bifidobacterium bifidum, Bifidobacterium breve, Bifidobacterium animalis, Bifidobacterium lactis, Bifidobacterium infantis, Bifidobacterium adolescentis  or  Bifidobacterium pseudocatenulatum  and their mixtures. 
   
   
       9 . The method according to  claim 1 , in which the microorganism of the genus  Bifidobacterium  species is  Bifidobacterium longum.    
   
   
       10 . The method according to  claim 1 , in which the said lysate comprises from 0.1 to 50% by weight, of active material(s). 
   
   
       11 . The method according to  claim 1 , in which the said lysate is administered by the topical route. 
   
   
       12 . The method according to  claim 1 , in which the said lysate is administered by the oral route. 
   
   
       13 . A cosmetic method for treating and/or preventing a dry dandruff state of the scalp comprising administering to a subject an effective amount of a lysate of at least one microorganism of the genus  Bifidobacterium  species and/or one of its fractions. 
   
   
       14 . A method for treating and/or preventing dryness or associated disorders of a keratinous substance comprising the preparation of a composition comprising an effective amount of a lysate of at least one microorganism of the genus  Bifidobacterium  species and/or one of its fractions. 
   
   
       15 . A method for treating and/or preventing a dry dandruff state of the scalp comprising the preparation of a composition comprising an effective amount of a lysate of at least one microorganism of the genus  Bifidobacterium  species and/or one of its fractions. 
   
   
       16 . A cosmetic and/or dermatological composition for preventing and/or treating dry keratinous substances, comprising, in a physiologically acceptable medium, at least an effective amount of a lysate of at least one microorganism of the genus  Bifidobacterium  species in combination with at least an effective amount of at least one additional microorganism, and/or one of its fractions and/or one of its metabolites, distinct from the said lysate. 
   
   
       17 . The composition according to  claim 16 , in which the microorganism of the genus  Bifidobacterium  species is selected from the group consisting of  Bifidobacterium longum, Bifidobacterium bifidum, Bifidobacterium breve, Bifidobacterium animalis, Bifidobacterium lactis, Bifidobacterium infantis, Bifidobacterium adolescentis  or  Bifidobacterium pseudocatenulatum , and their mixtures. 
   
   
       18 . The composition according to  claim 16 , in which the said lysate is present in a proportion of at least one 0.0001% by weight (expressed as dry weight) with respect to the total weight of the said composition. 
   
   
       19 . The composition according to  claim 16 , in which the said probiotic microorganism is selected from the group consisting of the Ascomycetes, such as  Saccharomyces, Yarrowia, Kluyveromyces, Torulaspora, Schizosaccharomyces pombe, Debaromyces, Candida, Pichia, Aspergillus  and  Penicillium , bacteria of the genus  Bifidobacterium, Bacteroides, Fusobacterium, Melissococcus, Propionibacterium, Enterococcus, Lactococcus, Staphylococcus, Peptostreptococcus, Bacillus, Pediococcus, Micrococcus, Leuconostoc, Weissella, Aerococcus, Oenococcus, Lactobacillus , and their mixtures. 
   
   
       20 . The composition according to  claim 16 , in which the additional microorganism results from the group of the lactic bacteria. 
   
   
       21 . The composition according to  claim 16 , in which the additional microorganism is chosen from the strains  Lactobacillus johnsonii  (CNCM I-1225). 
   
   
       22 . The composition according to  claim 16 , in which the probiotic microorganism and/or one of its fractions and/or one of its metabolites is present in a proportion of 0.1 to 10% by weight of the said composition. 
   
   
       23 . The composition according to  claim 16 , in which it is provided in the form of aqueous, aqueous/alcoholic or oily solutions, of dispersions of the type of solutions or dispersions of the lotion or serum type, of emulsions of the liquid or semiliquid consistency of the milk type, obtained by dispersion of a fatty phase in an aqueous phase (O/W) or vice versa (W/O), or of suspensions or emulsions with a soft, semisolid or solid consistency of the cream type, of aqueous or anhydrous gels, or also of microemulsions, of microcapsules, of microparticles or of vesicular dispersions of anionic and/or nonionic type. 
   
   
       24 . A cosmetic and/or dermatological composition, of use in particular for preventing and/or treating dry keratinous substances, comprising, in a physiologically acceptable medium, at least an effective amount of a lysate of at least one microorganism of the genus  Bifidobacterium  species in combination with at least an effective amount of at least one moisturizing active principle. 
   
   
       25 . A cosmetic method for treating and/or preventing dryness and/or associated disorders of a keratinous substance in a subject, comprising at least one step of administration to the said subject of at least an effective amount of at least one microorganism of the genus  Bifidobacterium  species in the form of a lysate. 
   
   
       26 . The method according to  claim 25 , in which the microorganism of the genus  Bifidobacterium  species is selected from the group consisting of  Bifidobacterium longum, Bifidobacterium bifidum, Bifidobacterium breve, Bifidobacterium animalis, Bifidobacterium lactis, Bifidobacterium infantis, Bifidobacterium adolescentis  or  Bifidobacterium pseudocatenulatum  and their mixtures.