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Biologique Recherche 1oz SERUM YALL-O2
Biologique Recherche 0.3oz SERUM YALL-O2


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Biologique Recherche Serum Yall-O2 naturally plumps the skin to create a full appearance around the face and lips. Formulated with hyaluronic acid and marine collagen, this unique plumping serum is a great addition to your routine to fight aging and dehydration. The larger molecules of this unique serum help protect the skin while allowing the products applied beneath to penetrate the skin better, leaving the complexion regenerated and refreshed.  Serum Yall-O2 contains ultra-high doses of hyaluronic acid and antioxidant plant extracts. This intensely 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.

Recommended for Skin Instants© that are dehydrated and lacking in lipids.


  • Plumping effect on the fullness of the face and lips.

  • Revitalizes and reinforces the skin’s elasticity.

  • Forms a protective film over the skin.

  • Promotes optimal skin hydration levels.

  • Increases and restructures the fullness of the skin and lips.

  • Major weapon against dehydration and aging, highly targeted action.

  • Reduces the size and depth of lines and wrinkles and restores the skin’s smooth appearance.

  • Leaves the skin visibly refreshed and regenerated.

How to use

1. Apply 4 to 5 drops of finishing serum to the entire face, neck and décolleté, in the morning and/or at night

2. This product is applied as the final touch of the Biologique Recherche skincare program


Water (Aqua), Perfluorodecalin, Coco-Caprylate, Isocetyl Stearate, Maltodextrin, Xylitylglucosides, Sodium Hyaluronate, Anhydroxylitol, Polyperfluoromethylisopropyl Ether, Xylitol, Poloxamer 188, Rhizobian Gum, Punica Granatum Fuit Extract, Acacia Senegal Gum, Lilium Candidum Flower Extract, Juglans Regia (Walnut) Seed Extract, Hibiscus Sabdariffa Flower Extract, Juglans Regia (Walnut) Shell Extract, Carum Carvi (Caraway) Fruit Oil, Citric Acid, Propylene Glycol, Polyacrylamide, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, C13-14 Isoparaffin, Chlorphesin, Xanthan Gum, Ethylhexylglycerin, Laureth 7, Sodium Benzoate, Sorbitan Isostearate, Polysorbate 60, Phenoxyethanol, Potassium Sorbate, Sodium Metabisulfite, Limonene.


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