The Premier Cru The Serum offers a lightweight silky texture, enveloping the epidermis in nutrients to promote a smooth, more radiant complexion. After a revolutionary discovery of the patented TET8™ technology, the Caudalie laboratory sourced an active ingredient named Honokio, eco-extracted from magnolia the game-changing ingredient helps to boost the TET enzyme. Blended with resveratrol, the powerful combination works to reduce the signs of fine lines, wrinkles and uneven skin tone, promoting a more youthful-looking appearance. The serum is 3.5 more concentrated in hyaluronic acid than the cream, making it ultra-hydrating and nourishing. Infused with tightening sugars and niacinamide, the potent formula works to reduce the appearance of fine lines, while refining pores to promote healthy-looking skin. Fragranced with the soft scent of violet leaves, rose petals, white wood and benzoin resin, the aqueous gel serum offers a sweet gentle aroma.