PROBLEM TO BE SOLVED: To provide a phenyl group-containing organopolysiloxane composition, the entire of which exhibits a high refractive index, which is stably mixed with a cosmetic and is excellently handleable, and whose viscosity is easily adjustable, and to provide a cosmetic raw material made from the composition, and a cosmetic, particularly, a make-up cosmetic containing the cosmetic raw material.SOLUTION: In the phenyl group-containing organopolysiloxane composition, the refractive index of the entire composition is &ge1.50, the viscosity of the whole composition at 25°C is in a range of 200 to 500,000 mPa s. Preferably, the composition includes (A) a phenyl silsesquioxane resin having a number-average molecular weight of 500-2,000, and (B) a phenyl group-containing organopolysiloxane having a refractive index of &ge1.45.COPYRIGHT: (C)2011,JPO&INPIT【課題】組成物全体が高屈折率を呈し、化粧料への配合安定性、取り扱い性にすぐれ、その粘度を容易に調整可能なフェニル基含有オルガノポリシロキサン組成物、該組成物からなる化粧料原料、それを含有してなる化粧料、特にメイクアップ化粧料の提供を目的とする。【解決手段】組成物全体の屈折率が1.50以上であり、25℃における組成物全体の粘度が200~500,000mPa・sの範囲にあるフェニル基含有オルガノポリシロキサン組成物であって、好適には、(A)数平均分子量が500~2,000の範囲であるフェニルシルセスキオキサン樹脂および(B)屈折率1.45以上のフェニル基含有オルガノポリシロキサンを含有してなる組成物。【選択図】図2