New and Improved YSL Beauty All Hours Foundation, the complexion that you can rely on all day. Now with an upgraded, breathable formula that provides up to 24H full coverage and a weightless light as air feel, as if your skin was bare.The new formula is infused with Hyaluronic acid for all day hydration, as well as day after day skin-caring benefits. Skin is proven to feel softer, smoother, and more hydrated*. All Hours foundation now achieves Transfer proof, Waterproof and Sweat proof. Complexion appears flawless and fresh, for a 24H** natural luminous matte makeup result.Discover YSL All Hours Foundations new 3 letter shade naming system for better shade finding:1st digit represents your skintone, Light (L)/Medium (M)/Deep (D)2nd digit represents your skin undertone. Cool (C): Your skin has hints of pink, blue or purple tones. Neutral (N): Your skin has a mixture of both warm and cool tones, or you find it difficult to determine. Warm (W): Your skin has hints of peach or yellow tones.3rd digit represents shade intensity from 1 10.BENEFITS: 24H FULL COVERAGE 24H WEIGHTLESS FEEL, AS IF SKIN IS BARE 24H NATURAL LUMINOUS MATTE MAKEUP RESULT INFUSED WITH HYALURONIC ACID FOR ALL DAY HYDRATION SKIN FEELS SOFTER, SMOOTHER AND MORE HYDRATED* TRANSFER PROOF, WATERPROOF AND SPORT PROOF* Consumer Test After 2 Weeks On 111 Women in US **Consumer test after 2 weeks on 111 women