Biologique Recherche

Serum Yall-02

A concentrated treatment that delivers long-lasting moisture to smooth fine lines and replenish natural volume.

$360.00

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Product details

This high-performance hydrating serum addresses dehydration and lipid deficiencies in the skin. With a potent concentration of hyaluronic acid and antioxidant-rich plant extracts, it's an intensive treatment to restore and maintain optimal moisture levels, instantly leaving the skin smoother, more supple, and plump.


Designed to deliver multi-layer hydration, it works on the surface to create a protective film and deeper within the epidermis to help skin retain water and maintain structural integrity. The result: more balanced, bouncy, and hydrated complexion—ideal for Skin Instants® that feel tight, depleted, or prone to fine lines from dryness.


SKIN SCIENCE

  • Hyaluronic acid occurs naturally in the skin and plays a key role in hydration and volume.
  • High molecular weight HA creates a protective film that limits evaporation.
  • Low molecular weight HA penetrates to encourage natural hyaluronic acid synthesis.
  • Antioxidant plant extracts help fight oxidative stress and replenish skin nutrients.
  • The serum supports the skin’s ability to retain moisture and maintain suppleness.
how to use

Apply 4 to 5 drops of Sérum Yall~O₂ to the entire face, neck, and décolleté in the morning and/or at night. Always apply as the final step of the Biologique Recherche skin care program.

ingredients

Water (Aqua), Glycerin, Methylpropanediol, Isocetyl Stearate, Dicaprylyl Carbonate, Maltodextrin, Perfluorodecalin, Bentonite, Hydrolyzed Lupine Protein, Caesalpinia Spinosa Fruit Extract, Kappaphycus Alvarezii Extract, Juglans Regia (Walnut) Seed Extract, Glycine Soja (Soybean) Oil, Sodium Hyaluronate, Serine, Citric Acid, Algin, Glyceryl Polyacrylate, Pullulan, Tocopherol, Trehalose, Pentylene Glycol, Sorbitan Isostearate, Succinic Acid, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Urea, Isohexadecane, Polyperfluoromethylisopropyl Ether, Poloxamer 188, Polysorbate 60, Disodium Phosphate, Disodium EDTA, Potassium Phosphate, Caprylyl Glycol, Phenylpropanol, Phenoxyethanol, Sodium Benzoate, Benzoic Acid, Sodium Metabisulfite, Sorbic Acid.

Editor's Note

Delivers that elusive “pillowy” texture to skin—expect bounce, cushion, and all-day glow.