Recent discoveries prove that your skin cells have "clock genes" that, when in sync with each other, help skin do what it does naturally — repair at night and protect by day.

But with age and repeated exposure to environmental stresses, these clock genes become de-synchronized, causing skin’s repair and protective processes to slow down.

Fortunately, Estée Lauder scientists, working extensively with a leading independent research team, are among the first to understand the important functions of skin’s clock genes. This pivotal research shows that clock genes regulate a series of precisely timed repair responses within each skin cell to help maximize its DNA repair.

Inspired by these findings, Estée Lauder developed the exclusive Chronolux™ Technology that powers Advanced Night Repair’s silky serum. It helps get skin back in sync, optimizing its natural repair processes.

This breakthrough technology is just one reason why Advanced Night Repair is the one formula beautiful skin can’t live without.