Provided is an oil-based cosmetic containing the following components (A), (B), and (C): (A) 1 to 50 mass% of a cellulose derivative having a cellulose skeleton for a main chain, in which 45 to 95 mol % of all the hydroxyl groups are substituted with group-O-M-R (wherein M represents CH2 or a carbonyl group C=O, R represents an alkyl group or an alkenyl group of a straight chain or a branched chain having 3 to 40 carbons, a branched chain alkyl group, or an alkenyl group) (B) 5 to 80 mass% of a volatile hydrocarbon oil and (C) 5 to 50 mass% of an ester oil that is a liquid at 25 DEG C, wherein a mass ratio (B)/(C)of component (B) to component (C) is 0.7 to 9, and when a shear rate at 25 DEG C is 0.1 s-1, a shear viscosity of the total bulk is 1,500 Pa·s or less.本發明的油性化妝料,係含有下述成分(A)、(B)及(C):(A)主鏈具有纖維素骨架,總羥基之45~95mol%被-O-M-R基(M係表示CH2或羰基C=O;R係表示碳數3~40之直鏈或分支鏈烷基或烯基)取代的纖維素衍生物1~50質量%;(B)揮發性烴油5~80質量%;(C)25℃下呈液狀之酯油5~50質量%;於成分(B)相對於成分(C)的質量比例(B)/(C)係0.7~9,且於25℃下剪切速度為0.1s-1時,塊材整體的剪切黏度係1500Pa.s以下。
