The subject of the present invention is an anhydrous composition in the form of a powder or in the form of a paste, comprising: 30 to 55% by weight, relative to the weight of the composition, of a pulverulent phase comprising organic solid particles, mineral or composites, and mixtures thereof; a mixture of at least one organopolysiloxane elastomer conveyed in at least one first non-volatile, silicone or hydrocarbon oil, the content of organopolysiloxane elastomer (s) representing from 2 to 10% by weight relative to the weight of the composition, expressed as active ingredient; a binder phase representing 30 to 65% by weight, relative to the weight of the composition, this range taking into account the content of first (s) non-volatile oil (s), silicone (s) or hydrocarbon (s); ), comprising: at least one second nonvolatile hydrocarbon oil different from the first oil or oils; the content of second (s) hydrocarbon oil (s) nonvolatile (s) representing 10 (bound excluded) to 20% by weight relative to the weight of the composition; ○ optionally at least one wax with a content exceeding 5% by weight, relative to the weight of the composition. The invention also relates to a method for preparing said composition, as well as to a process for making up and / or treating the lips in which the aforementioned composition is applied. La présente invention a pour objet une composition anhydre sous forme de poudre ou sous forme de pâte, comprenant : - 30 à 55 % en poids, par rapport au poids de la composition, d'une phase pulvérulente comprenant des particules solides organiques, minérales ou composites, ainsi que leurs mélanges ; - un mélange d'au moins un élastomère d'organopolysiloxane véhiculé dans au moins une première huile non volatile, siliconée ou hydrocarbonée, la teneur en élastomère(s) d'organopolysiloxane représentant de 2 à 10 % en poids par rapport au poids de la composition, exprimé en matière active ; - une phase liante représe