A real shock treatment to boost hydration, Sérum Yall~02 contains ultra-high doses of hyaluronic acid and antioxidant plant extracts. This intense hydrating treatment provides the amount of moisture skin needs to function properly and feel comfortable. The effect is instant, as the fine lines caused by dehydration are plumped up.
Key Ingredients
Trio of polysaccharides, Hyaluronic acid (low molecular weight), Hyaluronic acid (high molecular weight), Chaperone proteins from microorganisms from the Valais glacier, Red seaweed and Tara fruit extract complex, Oxygenating Complex specific to Biologique Recherche, Lupin Lipopeptides, Walnut extract.

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Sérum ~ Yall 02
The Science
With very high doses of moisturizing active ingredients, including both forms of hyaluronic acid, Sérum Yall~O2 is a real shock treatment to boost hydration. It provides the skin with the moisture it needs to function effectively. The core formula, comprising of plumping active ingredients, helps stimulate the tissue and contributes to maintaining skin tone. Its antioxidant plant extracts help restructure and protect the epidermis against harsh external factors responsible for premature aging.
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.
