Sisley Paris makes some seriously effective (and seriously pricey) skin care (their Black Rose Mask is a beauty editor favourite). So we can't wait to try the new Sisley Self-Tanning Hydrating Facial Skin Care (£97), a fake tan and face cream in one. The formula contains the traditional self-tanning ingredient, DHA, which develops in 2-4 hours, as well as erythrulose, which develops 24 hours later into a gorgeous golden glow. And because the face cream also contains glycerin, as well as alpine rose and stevia leaf extracts, your skin will never become dull and dehydrated, even with regular use.