France's L'Oreal, the world's biggest cosmetics group, bought Canadian augmented reality and artificial intelligence specialist ModiFace in March.
The French company said e-commerce revenues reached 9.5 percent of all its sales in the first half of 2018, up from close to 5 percent three years ago.
The virtual testing technology should eventually be rolled out on Facebook's photo-sharing networking site Instagram, Rochet said. In China, where Facebook is blocked, Rochet said L'Oreal was also talking to other partners about similar deals, without naming them.
Luxury goods groups in China do a lot of business through Tencent's messaging and networking site WeChat.