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Le Grand Serum is the most luxurious finishing serum that revitalizes and moisturizes the skin, showing instant exceptional results that leave the skin plumped up, toned and luminous.

Direction for use:

Apply a few drops of Le Grand Sérum to clean skin all over the face, neck and décolleté with light upward strokes. Use mornings and/or evenings. This product is intended as a final touch of your Biologique Recherche skin care program.


Helps prevent premature aging and strengthens the natural defense system of the skin. 

Tones, revitalizes and calms the epidermis.

Le Grand Serum is the richest Biologique Recherche serum, containing 27 active ingredients.

Brightens the complexion and moisturizes the epidermis.


Le Grand Sérum is a sublimating elixir, a genuine concentrate of beauty whose action grows more intense with each consecutive application.


Recommended for: 

All Skin Instants.

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