Biologique Recherche Serum T.E.W.L.

Biologique Recherche Serum T.E.W.L. is named for the problem it addresses: transepidermal water loss, the moisture that escapes through a barrier no longer holding together. Rather than adding water, it replaces the lipids that should be keeping water in. A dense blend of plant oils stands in for the intercellular lipids the skin is short of, protective botanicals shield the surface from the weather, and barrier agents rebuild the cohesion between cells. This is the serum to reach for in hard cold, in dry air on a plane, or in the week after a peel or a laser, when skin has lost the ability to hold onto water by itself. Fragrance-free and paraben-free.

Product Features:

• Replaces missing lipids rather than adding water that would evaporate away.
• A dense plant oil blend stands in for the lipids the skin is no longer making.
• Protective botanicals shield the surface and rebuild cohesion between cells.
• Built for cold, dry air and for recovery after a peel or laser treatment.

How to Use:

Apply a few drops to cleansed skin after your lotion, pressing it in over the face and neck rather than rubbing. Use it alone on very depleted skin, or under a cream when the weather turns. It layers well over a hydrating serum, since it seals in whatever is underneath. Morning, night or both.