During the day, our skin uses its energy to protect itself. The perfect day cream, All Day All Year supports it by acting as a global shield that both protects the skin and activates its self-defense mechanisms*, to preserve younger-looking skin for longer. To design All Day All Year, Sisley Laboratories studied the environmental and endogenous factors to which we are exposed during our lives. These factors, which are grouped under the scientific term exposome, include solar radiation, pollution, tobacco, etc. They are responsible for 80% of skin aging. The complex and highly concentrated formula of All Day All Year protects the skin from the aggressions that age it prematurely and strengthens its defense power* thanks to its two complementary shields, physical and biological.