Sérum T.E.W.L., a genuine lipidic shield, is more specifically appropriate for extreme conditions of cold and low air humidity. It is ideal for very lipiddeficient Skin Instants, also accompanied by significant sensations of tightness and signs of minor lines associated with superficial dehydration of the epidermis. Results:A lipidreplenishing, protective and repairing serum, genuine "lipidic shield".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.Targeted Serums:Some Skin Instants may present specific but temporary imbalances that require targeted treatment and both immediate and lasting results. This is why Biologique Recherche has developed the Targeted Serums, a new generation of serums. Their composition in phytobiologically and biotechnologically obtained active principles will attack the causes and consequences of observed dysfunctions.How To Use:Apply a few drops of Sérum T.E.W.L., instead of the regularly used Finishing Serum, all over the face, neck or décolleté and massage with fingertips until fully absorbed by the skin. 0.3 oz./ 9