COSMETIC COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF HYDROPHOBIC SILICA AEROGEL PARTICLES AND A PARTICULAR ALCOHOL

The present invention relates to a method for the cosmetic treatment of keratin fibres, in particular human keratin fibres such as the hair, characterized in that it consists in applying an effective amount of a cosmetic composition comprising an aqueous dispersion of hydrophobic silica aerogel particles comprising at least one alcohol of formula (I) below, the optical isomers thereof and the solvates thereof, in particular the hydrates thereof: in which formula (I): R1 represents an -OH, -CH2OH or -CH3 group; R2 represents a hydrogenatom or an -OH group; R3 represents a hydrogen atom, a -CH2OH group, an -(O-CH2-CH2)n-OH group with n denoting an integer ranging from 1 to 10, a -(CH2-CH2)n-OH group with n denoting an integer ranging from 1 to 5 or a -CH(OH)-CH3 group, 20 the formula comprising at least one hydroxyl group.