An organic group-modified organosilicon resin having the average compositional formula (1), which is solid or liquid at 25°C, is suited for use in cosmetics. The resin is able to form an emulsion having a pleasant feel on use, a high internal water phase, and stability over time. In formula (1), a, b, c, d, e, and f are numbers: 0 ≤ a ≤ 400, 0 <； b ≤ 200, 0 ≤ c ≤ 400, 0 ≤ d ≤ 320, 0 ≤ e ≤ 320, 0 <； f ≤ 1,000, and 0.5 ≤ (a+b+c)/f ≤ 1.5. (R13SiO1/2)a(R23SiO1/2)b(R33SiO1/2)c(R12SiO2/2)d(R1SiO3/2)e(SiO4/2)f (1)
