Biologique Recherche Serum Biosensible is a reconditioning, restructuring and soothing treatment serum for sensitive skin types. It is one of the best facial serums for sensitive skin as it reduces skin sensitivity and soothes tightness. Serum Biosensible is suitable for use after medical or cosmetic surgery. The Serum Biosensible can be used at any point during the treatment to stabilize the skin if redness or heat appear.