How to apply Serum Yall O2

Deposit a few drops of Biologique Recherche Serum Yall-O2 in the hollow of your hand. Penetrate into skin by light massage over face, neck, and decollete morning and evening after moisturizer.

How to open 0.3oz serum:

Helpful tip
To maintain the integrity of the product, Biologique Recherche serums have a uniquely customized applicator that must be manually secured to the bottle. We understand that this could be a bit tricky, especially if you are opening a serum for the first time. We made a handy video to guide you through the process: How To Open Biologique Recherche Serum Vials.

Active Ingredients

Hyaluronic Acids ( high and low molecular weight), Chaperone proteins from Microorganisms from the Valais glacier, and Lupin Lipopeptides. 

Other Ingredients

WATER (AQUA), GLYCERIN, METHYLPROPANEDIOL, ISOCETYL STEARATE, DICAPRYLYL CARBONATE, MALTODEXTRIN, PERFLUORODECALIN, BENTONITE, HYDROLYZED LUPINE PROTEIN, CAESAPINIA SPINOSA FRUIT EXTRACT, KAPPAPHYCUS ALVAREZII EXTRACT, JUGLANS REGIA (WALNUT) SHELL EXTRACT, COCO-CAPRYLATE, XYLITYLGLUCOSIDE, PUNICA GRANATUM FRUIT EXTRACT, LILIUM CANDIDUM FLOWER 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, POTASSIUM PHOSPHATE, CAPRYLYL GLYCOL, PHENYLPROPANOL, PHENOXYETHANOL, SODIUM BENZOATE, BENZOIC ACID, SODIUM METABISULFITE, SORBIC ACID.

*Please Note: This ingredient list is subject to change. Please refer to the product packaging for the most up-to-date ingredient list.