Kapustina is 1.71 m tall and weights 50 kilos. She has worked for Karl Lagerfeld besides participating in an advertisement for television in Japan and China, and has modeled for Gucci, Dior, YSL, Chanel and Chloé. She studied Human Resources in the Far Eastern Federal University in Russia. Kapustina has been dating Spanish Formula One driver Fernando Alonso since mid-2012.