The subject of the present invention is a composition, in particular a cosmetic composition, in the form of an emulsion comprising at least one polyester resulting from the esterification, by a polycarboxylic acid, of an aliphatic hydroxy carboxylic acid ester comprising at least two hydroxyl groups and at least one nonionic cellulose derivative comprising one or more hydrophobic substituents having from 8 to 30 carbon atoms. The subject of the present invention is also a composition, in particular a cosmetic composition, in the form of an emulsion comprising at least one active agent chosen from C-glucoside derivatives, in particular C-beta-D-xylopyranoside-2-hydroxy-propane, and cucurbic acid derivatives, such as the sodium salt of 3-hydroxy-2-pentylcyclopentyl) acetic acid, at least one pasty fatty substance, and at least one nonionic cellulose derivative comprising one or more hydrophobic substituents having from 8 to 30 carbon atoms. The present invention makes it possible to obtain emulsions containing pasty fatty substances that are stable, even without the use of an emulsifying surfactant or with a low level of emulsifying surfactant (for example less than 3%), and which bring a good sensory pleasure. , even when the composition has a high level of pasty fatty substance. The present invention also makes it possible to obtain emulsions containing active agents chosen from C-glucoside derivatives and cucurbic acid derivatives which are stable, even without the use of an emulsifying surfactant or with a low level of emulsifying surfactant (for example less than 3%), and which provide good sensory pleasure, even when the composition has a high rate of these assets. The composition according to the invention provides an excellent sensoriality, without rough effect neither greasy nor sticky and without effects of pellucts. In addition, it enhances the perception of effectiveness through immediate effects felt from the application of the product: nutritional effect
