Sérum T.E.W.L. is formulated with an ultra-high concentration of precious lipid-replenishing, repairing and protective oils. The combined action of its active ingredients restores a strong cutaneous barrier and strengthens the hydrolipidic film so skin is better able to shield itself from external aggressions. this serum is particularly suitable for extreme cold and low-moisture conditions by enveloping the skin to nourish it intensely and ensure optimal comfort.
Key Ingredients
Macadamia nut oil, Cottonseed oil, Sesame oil, Huile de Luffa, Pine Tree Phytosteols, Complex based on Raspberry seed oil and a Vitamin E derivative, Cranberry oil, Jojoba extract, Sea Buckthorn berry and Seed oily extract, Tsubaki oil, Wakame seaweed extract, Samphire oily extract

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Sérum T.E.W.L
The Science
The Sérum T.E.W.L. is a genuine lipid shield, which plays the role of “opposing water evaporation”; its lipid-restoring active ingredients capture hydration in the tissues, while its protective and repairing active ingredients restore a good-quality skin barrier, enabling the skin to better defend itself against harsh external factors. The serum’s formula envelops skin like an epidermal shield, providing intense nourishment and supreme comfort. Once repaired and protected, the epidermis maintains an optimal level of hydration.
Instructions For Use
- After using Crème Dermo-RL, apply 4 drops of Sérum T.E.W.L. to the entire face, neck and décolleté and massage in with fingertips until completely absorbed.
- As an intensive treatment: Use Sérum T.E.W.L. 2 to 3 times a week, morning and/or night, for about 28 days.
About Biologique Recherche
Founded in Paris by a biologist and physiotherapist duo, the brand has become a global gold standard in professional skincare. Beloved by the world’s top estheticians, Biologique Recherche delivers clinical, results-driven treatments with cold-pressed, fragrance-free formulas packed with the highest concentration of active ingredients.
The products truly work—you see and feel the difference. There’s a certain magic to Biologique Recherche, from its unmatched quality to the way it transforms skin. Its Skin Instant™ methodology redefined our approach to skincare, proving that skin is constantly evolving and should be treated accordingly.
Experience it yourself with a personalized consultation and facial, or discover the perfect home-care routine tailored to you.
Biologique Recherche Treatments will be available at Living Beauty Spring 2025.
