Cosmetic method for treating human perspiration using particles of an expanded amorphous mineral material; compositions

Abstract

The invention relates to a cosmetic method for treating perspiration and, optionally, the body odours related to human perspiration, in particular underarm odours, an effective amount of particles of an expanded amorphous mineral material or of a composition containing said particles, and more particularly containing expanded perlite particles. The subject of the present invention is also a cosmetic method for treating perspiration and, optionally, the body odours related to human perspiration, in particular underarm odours, an effective amount of particles of a composition containing, in a cosmetically acceptable carrier, at least said particles and at least one antiperspirant salt or complex. The subject of the present invention is also a composition containing, in a cosmetically acceptable carrier, at least said particles and at least one antiperspirant salt or complex. The subject of the present invention is also an anhydrous solid composition in the form of a stick, characterized in that it comprises, in a cosmetically acceptable carrier: (i) more than 1% by weight, relative to the total weight of the composition, of expanded mineral particles as defined above; and (ii) at least one fatty phase comprising at least one volatile oil and/or at least one non-volatile oil and a structuring agent.

1 . Cosmetic method for treating human perspiration and, optionally, human body odours, consisting in applying, to the surface of the skin, an effective amount of particles of an expanded amorphous mineral material comprising at least two elements chosen from silicon, aluminium and magnesium or a composition containing said particles in a cosmetically acceptable carrier. 
     
     
         2 . Method according to  claim 1 , in which the expanded amorphous mineral material is derived from at least one volcanic rock. 
     
     
         3 . Method according to  claim 2 , in which the expanded amorphous mineral material derived from at least one volcanic rock contains at least two elements chosen from silicon, aluminium and magnesium. 
     
     
         4 . Method according to  claim 2 , in which the expanded amorphous mineral material derived from at least one volcanic rock is obtained by thermal expansion of a volcanic rock comprising from 1% to 10% by weight of water, and less than 10% by weight of crystalline rock, relative to the total weight of the composition of the rock, followed by milling. 
     
     
         5 . Method according to  claim 1 , in which the particles of expanded amorphous mineral material are perlite particles. 
     
     
         6 . Method according to  claim 5 , in which the perlite particles are milled and have a particle size defined by a median diameter D 50  ranging from 0.5 to 50 μm. 
     
     
         7 . Method according to  claim 5 , in which the amount of particles of expanded amorphous mineral used represents from 1% to 100%, of the total weight of the composition. 
     
     
         8 . Method according to  claim 1 , in which the expanded mineral particles constitute the sole perspiration treatment agent. 
     
     
         9 . Method according to  claim 1 , in which the composition is packaged:
 (i) in pressurized form in an aerosol device or in a pump-dispenser bottle;   (ii) in a roll-on device;   (iii) in a device fitted with a perforated wall, in particular a grille;   (iv) in the form of a stick; (v) in the form of a loose or compacted powder.   
     
     
         10 . Method according to  claim 1 , in which the composition also comprises at least one deodorant active agent. 
     
     
         11 . Method according to  claim 1 , in which the composition also comprises at least one antiperspirant salt or complex. 
     
     
         12 . Method according to  claim 1 , in which the antiperspirant salts or complexes are generally chosen from aluminium and/or zirconium salts or complexes. 
     
     
         13 . Method according to  claim 12 , in which the antiperspirant salts or complexes are chosen from aluminium halohydrates; aluminium zirconium halohydrates, and complexes of zirconium hydroxychloride and of aluminium hydroxychloride with or without an amino acid. 
     
     
         14 . Composition according to  claim 11 . 
     
     
         15 . Anhydrous solid composition in the form of a stick, characterized in that it comprises, in a cosmetically acceptable carrier:
 (i) more than 1% by weight, relative to the total weight of the composition, of expanded mineral particles as defined in the preceding claims; and (ii) at least one fatty phase comprising at least one volatile oil and/or at least one non-volatile oil and a structuring agent.   
     
     
         16 . Composition according to  claim 15 , comprising at least one polyethylene wax or one mixture of polyethylene waxes in the form of crystallites having a shape factor at least equal to 2, having a melting point ranging from 70 to 110° C., and having an average length ranging, from 5 to 10 μm. 
     
     
         17 . Method according to  claim 4 , wherein the amount of water is from 1% to 5%. 
     
     
         18 . Method according to  claim 3 , in which the expanded amorphous mineral material derived from at least one volcanic rock is obtained by thermal expansion of a volcanic rock comprising from 1% to 10% by weight of water, and less than 10% by weight of crystalline rock, relative to the total weight of the composition of the rock, followed by milling. 
     
     
         19 . Method according to  claim 6 , wherein the perlite particles have a particle size defined by a median diameter D 50  ranging from 0.5 to 40 μm. 
     
     
         20 . Method according to  claim 7 , wherein the amount of particles of expanded amorphous mineral used is from 5% to 60%, by weight of the total weight of the composition.