Serum T.E.W.L.

  • For sun damaged, leathery, very dry skin. Also good for extreme cold weather.
    Great if you’re skiing, or going from a hot to cold climate.
    A genuine lipidic shield, Serum TEWL helps reverse the skin’s fat deficiency.
    It restores the barrier against environmental elements, and helps protect against extreme cold and dry conditions.
    Must be topped with Biologique Recherche Crème Dermo-RL.

    • Helps restore a high-quality cutaneous barrier in order to improve the skin's defence system
    • Creates a protective film that helps maintain lipids on the skin's surface and throughout the extracellular environment (cement surrounding the epidermal cells)
    • Reverses the skin's deficiency in fats
    • Procures a sensation of comfort immediately after application and throughout the day
    • Protects the skin against extreme cold and low air moisture conditions.
    • A serum to compensate for lipid deficiencies.
    • An extremely active treatment, it revitalises and regenerates the skin.
    • It is ideal for eliminating sensations of tightness and attenuating the appearance of fine lines associated with the skin's superficial dehydration.
    • A genuine lipidic shield.
    Note :
    - Do not use on Skin Instant with seborrheic tendencies.
    - Not suitable for children.
  • To the face, neck and décolleté. Avoid eye contact and mucous membranes.
    If this happens, rinse thoroughly with clear water. External use only.
    Apply a few drops of Sérum T.E.W.L., instead of the regularly used Finishing Serum.
    Use after Crème Dermo-RL all over the face, neck or décolleté and massage with fingertips until fully absorbed by the skin.
    Intensive treatment:
    Use two to three times a week, every morning and/or evening, over the entire course of a single epidermal renewal cycle (about 28 days).
    Maintenance care:
    In case of prolonged exposure to unfavourable, cold and dry climatic conditions, or when the epidermis is very dehydrated, apply Sérum T.E.W.L.
  • Lipidic actives ingredients:
    Phytosterols, Cholesterol Sulphate, Mink Fat
    Protective actives ingredients:
    Sea Buckhorn Berry and Seed Oil Extract, Barbary Fig Extract and Jojoba Oil, Sesame oil
    Repairing actives ingredients:
    Raspberry Seed Oil Extract, Cranberry Oil

Customer Reviews

Based on 11 reviews
Karen Coon
Serum T E W L

Excellent serum…love it!! Your service was fantastic…very quick!!
You’ve made ordering so easy!!

Thank you so much

Really Helps with Masque Vernix

Was looking for something to lock in the hydration and this really helps.


Love this serum. I mix it with creme dermo RL and creme masque vernix, amazing!

Mary Ann Bozzi

Love this product …….

I bought this from another vendor but felt I should also leave a review here.

** 5+ stars**

The TEWL is a game-changer. Living in an arid climate is brutal on my skin and no matter how much I moisturise, my skin never stays hydrated beyond the first 10 minutes and then the fine lines resurface. Well, the TEWL has completely changed that and I was genuinely shocked at the results I got after only one use and I'm not exaggerating when I say the nasal labia folds were completely filled and other Fine lines and crows feet diminished almost instantly. Then there's the glow. Definitely worth every penny.