The present invention provides a lip cosmetic that has good gloss and good stability, while maintaining post-application secondary adhesion resistance. The lip cosmetic of the present invention is characterized by comprising the following components (a) to (d): (a) 4.5 to 35 mass % of glyceryl monoisostearate; (b) 20 to 80 mass % of one or more kinds of methyl phenyl silicones that do not separate out when mixed with (a) at 90 °C and separate out when mixed with (a) at 25 °C; (c) 5 mass % or more of water and/or glycerin, relative to the component (a), and 24 mass % or less, relative to the total amount of the cosmetic; and (d) 4 to 10 mass % of a wax. Disclosed is a lip cosmetic which has a good gloss and a high stability while continuously being free from secondary stickiness after application. Specifically disclosed is a lip cosmetic characterized by comprising: (a) 4.5 to 35 mass% of glycerol monoisostearate; (b) 20 to 80 mass% of one or more kinds of methyl phenyl silicones which are not separated out when mixed with the component (a) at 90°C but separated out when mixed mixed with the component (a) at 25°C; (c) 5 mass% or more, relative to the component (a), of water and/or 24 mass% or less, relative to the total cosmetic, of glycerol; and (d) 4 to 10 mass% of a wax.