The invention relates to a composition containing the following components in a physiologically acceptable medium, namely: a) a siloxane resin comprising at least 80 mole % of units (i) (R3Si01/2)a and (ii) (SiO4/2)b, wherein R′ represents independently an alkyl group having between 1 and 8 carbon atoms, an aryl group, a carbinol group or an amino group (provided that at least 95 mole % of the R′ groups are alkyl groups), a and b have values strictly greater than 0 and the a/b ratio is between 0.5 and 1.5 b) a propyl silsesquioxane resin comprising at least 80 mole % of (R″SiO3/2) units, wherein R″ represents independently an alkyl group having between 1 and 8 carbon atoms, an aryl group, a carbinol group or an amino group, provided that at least 80 mole % of the R″ groups are propyl groups, whereby the weight ratio between resins (a) and (b) is between 1/99 and 99/1, in particular between 85/15 and 15/85, resins (a) and (b) are not linked by covalent bonds and the number of units M in the final mixture is strictly less than the number of units (T+Q) and c) at least one non-volatile oil, preferably a hydrocarbon oil and preferably selected from the group containing paraffin oil (or petroleum jelly), squalane, hydrogenated polyisobutene (Parleam oil), perhydrosqualene, mink oil, turtle oil, soybean oil, sweet almond oil, Calophyllum oil, palm oil, grapeseed oil, sesame oil, corn oil, arara oil, rapeseed oil, sunflower oil, cottonseed oil, apricot oil, castor oil, avocado oil, jojoba oil, olive oil or cereal germ oil esters of lanolic acid, oleic acid, lauric acid, stearic acid fatty esters, particularly at C12-C36, such as isopropyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, diisopropyl adipate, isononyl isononanoate, 2-ethyl-hexyl palmitate, 2-hexyl-decyl laurate, 2-octyl-decyl palmitate, 2-octyl-dodecyl lactate or myristate, di(2-ethyl hexyl) succinate, diisostearyl malate, glycerin or diglycerin triisostearate behenic acid, oleic acid, linoleic
