Kiehl's skin-strengthening serum penetrates skin up to 8 surface layers deep and helps target the appearance of visible signs of ageing by helping to diminish the look of fine lines and reviving tired-looking, dull skin, which can be caused by daily stressors. Formulated with 11kDa (Kilodalton) Hyaluronic Acid— Kiehl's potent “super serum” penetrates skin’s surface layers and helps fortify skin barrier function. 

AQUA/WATER, DIMETHICONE, GLYCERIN, ALCOHOL DENAT., HAMAMELIS VIRGINIANA WATER/WITCH HAZEL WATER, PROPANEDIOL, PHENOXYETHANOL, TOCOPHEROL, AMMONIUM POLYACRYLOYLDIMETHYL TAURATE, SCHISANDRA CHINENSIS FRUIT EXTRACT, CAPRYLOYL SALICYLIC ACID, CAPRYLYL GLYCOL, XANTHAN GUM, PEG-60 HYDROGENATED CASTOR OIL, PANAX GINSENG ROOT EXTRACT, SODIUM ACETYLATED HYALURONATE, PEG-20 METHYL GLUCOSE SESQUISTEARATE, DISODIUM EDTA, OCIMUM SANCTUM LEAF EXTRACT, CITRUS AURANTIUM DULCIS PEEL OIL/ORANGE PEEL OIL, LIMONENE, ADENOSINE, SODIUM HYDROXIDE, METHYLDIHYDROJASMONATE, CITRIC ACID, EUGENOL, SODIUM BENZOATE, PELARGONIUM GRAVEOLENS FLOWER OIL, CITRAL, POTASSIUM SORBATE, LAVANDULA ANGUSTIFOLIA OIL/LAVENDER OIL, CYMBOPOGON SCHOENANTHUS OIL, CITRONELLOL, LINALOOL, GERANIOL, ROSMARINUS OFFICINALIS LEAF OIL/ROSEMARY LEAF OIL.