PROBLEM TO BE SOLVED: To provide an oil-in-water emulsion lip cosmetic excellent in freshness, no stickiness, gloss, transparency and sustainability of gloss.SOLUTION: There is provided an oil-in-water emulsion lip cosmetic which comprises the following components (A) and (B): (A) an oil phase containing (a1) and (a2); (a1) 5 to 70 mass% of a nonvolatile hydrocarbon oil containing a hydrogenated polyisobutene and (a2) 5 to 70 mass% of a methylphenylsilicone which is separated when mixed with (a1) at 25°C, and (B) a water phase containing (b1) and (b2); (b1) 10 to 80 mass% of an aqueous component and (b2) 0.01 to 10 mass% of a color material.SELECTED DRAWING: None【課題】 みずみずしさ、べたつきのなさ、つや、透明性、つやの持続性に優れた水中油型乳化唇用化粧料を提供する。【解決手段】 次の(A)、(B)を含むことを特徴とする水中油型乳化唇用化粧料。(A)(a1)および(a2)を含む油相 (a1)水添ポリイソブテンを含む非揮発性炭化水素油 5~70質量% (a2)25℃で(a1)と混合した時に分離するメチルフェニルシリコーン 5~70質量%(B)(b1)および(b2)を含む水相 (b1)水性成分 10~80質量% (b2)色材 0.01~10質量%【選択図】 なし