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 fare 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)
