Biologique Recherche Sérum T.E.W.L.

Biologique Recherche Sérum T.E.W.L.

Biologique Recherche Sérum T.E.W.L. is an intensive lipid serum for dry, dehydrated and lipid-deficient-feeling skin that feels tight and uncomfortable.

Its blend of botanical oils forms a protective film that helps limit transepidermal water loss (T.E.W.L.), helping the skin hold on to its moisture. It helps relieve the feeling of tightness and reduces the appearance of fine lines associated with dehydration.

Used after Crème Dermo-RL in place of your usual finishing serum, it is a great choice for those visiting or living in dry, cold climates.

Why we love it

We like to reach for Sérum T.E.W.L. during long stretches of cold, dry weather, or whenever the skin feels extremely dehydrated. It slips into the routine in place of the usual finishing serum, so nothing else needs to change. We also like that it brings a feeling of comfort immediately after application and throughout the day.

Benefits

• Helps reinforce the skin's moisture barrier and protect it from external aggressions
• Creates a protective film that helps maintain lipids on the skin's surface
• Provides a feeling of comfort immediately after application and throughout the day
• Helps replenish lipids in dry-feeling skin
• Helps relieve the feeling of tightness and reduces the appearance of fine lines associated with dehydration

Best for

Dry, dehydrated skin

When the weather turns cold and dry, swap your usual finishing serum for Sérum T.E.W.L. rather than adding another layer.

How to use

1. After Crème Dermo-RL, apply 4 drops of Sérum T.E.W.L. to the face, neck and décolleté, in place of your usual finishing serum.
2. Intensive course: use 2 to 3 times a week, morning and/or evening, for about 28 days.
3. It can also be used during long stretches of cold, dry weather, or whenever the skin feels extremely dehydrated.
4. In the morning, finish with a broad-spectrum sunscreen.

Full Ingredient List

COCO-CAPRYLATE/CAPRATE, SESAMUM INDICUM (SESAME) SEED OIL, APRICOT KERNEL OIL PEG-6 ESTERS, MACADAMIA TERNIFOLIA SEED OIL, CAMELLIA JAPONICA SEED OIL, VACCINIUM MACROCARPON (CRANBERRY) SEED OIL, HIPPOPHAE RHAMNOIDES OIL, HIPPOPHAE RHAMNOIDES SEED OIL, GOSSYPIUM HERBACEUM (COTTON) SEED OIL, ETHYLHEXYL PALMITATE, RASPBERRY SEED OIL/TOCOPHERYL SUCCINATE AMINOPROPANEDIOL ESTERS, OLEA EUROPAEA (OLIVE) FRUIT OIL, HELIANTHUS ANNUUS (SUNFLOWER) SEED OIL, LUFFA CYLINDRICA SEED OIL, SUNFLOWER SEED OIL GLYCERIDES, SIMMONDSIA CHINENSIS (JOJOBA) SEED EXTRACT, ROSMARINUS OFFICINALIS (ROSEMARY) LEAF EXTRACT, SALICORNIA HERBACEA EXTRACT, UNDARIA PINNATIFIDA EXTRACT, CANANGA ODORATA FLOWER OIL, CITRUS AURANTIUM AMARA (BITTER ORANGE) FLOWER OIL, TOCOPHEROL, PHYTOSTEROLS, DATEM, CAPRYLIC/CAPRIC TRIGLYCERIDE, LINALOOL, LIMONENE, BENZYL BENZOATE, FARNESOL, GERANIOL, BENZYL SALICYLATE.

Frequently Asked Questions

What does T.E.W.L. mean?

It stands for transepidermal water loss. The serum's botanical oils form a protective film that helps limit it, helping the skin hold on to its moisture.

Who is it for?

Dry, dehydrated and lipid-deficient-feeling skin that feels tight and uncomfortable, especially in dry, cold climates.

Where does it go in my routine?

After Crème Dermo-RL, in place of your usual finishing serum, over the face, neck and décolleté.

How often should I use it?

As an intensive course, 2 to 3 times a week, morning and/or evening, for about 28 days. It can also be used during long stretches of cold, dry weather.

How much should I apply?

4 drops for the face, neck and décolleté.

Does it contain fragrance ingredients?

Yes. The ingredient list includes ylang-ylang and bitter orange flower oils as well as fragrance components such as linalool, limonene and geraniol. Check the full list if you are sensitive to fragrance ingredients.

Does it contain nuts?

Yes. The formula contains ingredients derived from macadamia. If you have a nut allergy, please book a consultation with one of our estheticians before purchasing.

Consultation & reactions

At Loshen & Crem, we want to ensure you have the best possible experience with Biologique Recherche. Before purchasing any Biologique Recherche product, we highly recommend booking a consultation with one of our estheticians. Consultations are available virtually through Google Meet or in person at our Edmonton boutique. An appointment is required.

In the event of a reaction, Biologique Recherche requires photos of the reaction and the product, the lot number found on the product or the bottom of the box, and proof of a consultation with one of our estheticians before they can review the concern.

If you choose to purchase without a consultation and experience a reaction, we will be unable to provide a refund. Our team is always happy to answer your questions and help you select the products best suited to your skin.

Book a consultation

Shipping & returns

For delivery and return information, view our policy.