"St. Tropez is a trustworthy brand. People know it and it's a natural looking tan," Moss says in the promotional clip. "That's what people want."
The 39-year-old supermodel says she feels more confortable in her own skin when she is tan.
"Sometimes I think: 'I feel terrible but I look great!'" Moss said, adding "There is no reason to go around with that pasty pallor anymore, which is really exciting."