What it is: This tri-dimensional retinol treatment delivers three retinols in an exclusive botanical-based bio-retinol complex.What it does: The first dimension refines the skin's texture to accelerate cell renewal. The second dimension binds to skin receptors to improve the look of density and elasticity. The third dimension boosts the synthesis of ceramide 3 (NP) while minimizing the look of photo-damaged skin, lines and age spots. The intensive bio-retinol treatment in a night-peeling concentrate helps restore youthful-looking skin. How to use: Shake the serum well. After cleansing and toning the skin, apply four pumps of the serum into the palm of hand and smooth evenly over face, neck and décolleté, avoiding the eye area. 0.68 oz. Made in France