Midnight Secret Late Night Recovery Treatment Serum

What it is: A lightweight liquid nighttime treatment serum that helps reduce the appearance of fatigue and puffiness.

What it does: It smoothes away visible signs of tiredness so you wake up looking rested and revitalizes. It's Guerlain's secret to looking rested after a long night, and is formulated with eight effective ingredients that help reduce signs of fatigue and puffiness.

Research results:

In a use test conducted on 33 people:

- 79% noted skin felt refreshed, as if you had slept two extra hours

How to use: Apply alone all over a cleansed face and neck at night.