Lip composition in the form of an inverse emulsion comprising a humectant, and treatment process using the same

A water-in-oil emulsion cosmetic composition, comprising:

• from 15% to 55% by weight, relative to the weight of the composition, of an aqueous phase comprising one or more moisturizers or humectants,
• at least one silicon oil, and
• from 30% to 5% by weight relative to the weight of the composition of a lipophilic phase comprising:
• 1 to 20% by weight relative to the weight of the composition of at least one polar non-volatile hydrocarbon-based first oil selected from the group consisting of a non-volatile ester oil, a fatty acid triglyceride which comprises from 7 to 40 carbon atoms and which is liquid at room temperature, a hydrocarbon-based plant oil, and a mixture thereof,
• from 8% to 30% by weight, relative to the weight of the composition, of at least one volatile or non-volatile, hydrocarbon-based or silicone apolar oil, from 0.15% to 20% by weight relative to the weight of the composition of at least one solid compound whose melting point is at least 30° C. and which is selected from the group consisting of a polar or apolar hydrocarbon-based compound, a wax and a pasty substance, and
• at least one emulsifying surfactant system,
• wherein the composition comprises at least one phenyl silicone oil, optionally bearing a dimethicone fragment and not more than 20% by weight of a lipophilic phase of a hydrocarbon-based apolar compound of synthetic origin.