The present invention relates to an aqueous emulsion comprising a) a semifluorinated compound of formula I: CF3—(CF2)x—(CH2)y—CH3(I) wherein x is an integer ranging from 1 to 8 and y is an integer ranging from 2 to 10, b) a triglyceride which is miscible with the semifluorinated compound at 20° C. and c) an emulsifier.