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.
