St. Tropez Self Tan Express Bronzing Mousse is a fast-acting self-tanner that gives you a natural-looking tan in as little as one hour. The mousse formula is easy to apply and provides even coverage, giving you a golden glow without streaks. The tan develops in 1, 2, or 3 hours, depending on how deep you want the color. It’s infused with a light, refreshing fragrance and is suitable for all skin tones.