A real shock treatment to boost hydration, Sérum Yall~02 contains ultrahigh doses of hyaluronic acid and antioxidant plant extracts. This intense hydrating treatment provides the amount of moisture skin needs to function properly and feel comfortable. The effect is instant, as the fine lines caused by dehydration are plumped up. Recommended for Skin Instants that are dehydrated and lacking in lipids. Treatment Stage: The treatment applied during this fundamental stage is designed to leave the complexion beautiful and radiant. This stage is the most active moment of the Biologique Recherche skin care program. The products that are used during this stage contain high concentrations of botanical, marine and biological extracts. When applied in accordance with the Biologique Recherche Methodology, they balance, hydrate and revitalize the epidermis. The active ingredients work progressively. To improve the quality of the skin and leave the complexion radiant. Finishing Serums: These serums are used for the finishing touches and have very special formulations. The sophisticated precious extracts they contain deliver instant, yet lasting improvements to the skin. An array of botanical extracts with a variety of virtues interact in these superb blends. The finishing serums also stabilize the products applied during the Treatment Stage. They make an excellent makeup base and are ideal for everyday use as well as for special occasions. How To Use: Apply 4 to 5 drops of finishing serum to the entire face, neck and décolleté, in the morning and/or at night This product is applied as the final touch of the Biologique Recherche skincare program Precautions for Use: Do not apply to children's skin. For external use only. 0.3 oz./ 8