Abstract: An emulsion including (i) at least one oil, (ii) at least one phospholipid and (iii) at least one polymeric surfactant. Typically, the oil is a mixture of triglycerides and fatty acids. Also, the use of the emulsion in the treatment and/or prevention of a skin disease, in particular rosacea. The emulsion is therapeutically active as such, even when it includes only excipients and no therapeutic agent against a skin disease. The emulsion may also be used as a topical vehicle for a therapeutic agent against a skin disease. Further, a method for the treatment and/or prevention of a skin disease in a subject in need thereof, the method including a step of administration of a therapeutically effective amount of the emulsion.