The present invention relates to a composition comprising； - a hydrolat present at a content of at least 40% by weight relative to the total weight of the composition, and - 2 - hydroxybenzoic acid and / or - a polyol of 2 to 6 carbon atoms, preferably, the polyol is chosen from among the 1,3 - propanediol, propane - 1,1 -, - 1,2 - propane diol, ethane - 1,2 - diol, and mixtures thereof. According to a preferred embodiment of the invention, the composition comprises a hydrolat of rose, and of 1,3 - propanediol and / or of the 2 - hydroxybenzoic acid. The present invention also relates to a process for the cosmetic treatment of keratinous substances by the application of such a composition.
