Kiehl's Powerful-Strength Vitamin C Serum Versus Estée Lauder Advanced Night Repair Rescue Solution Serum With 15% Bifidus Ferment

Kiehl's Powerful-Strength Vitamin C Serum Versus Estée Lauder Advanced Night Repair Rescue Solution Serum With 15% Bifidus Ferment Detailed comparison of Kiehl's Powerful-Strength Vitamin C Serum versus Estée Lauder Advanced Night Repair Rescue Solution Serum With 15% Bifidus Ferment. This anti-aging serum is formulated around Ascorbic Acid and Ascorbyl Glucoside to soften the look of wrinkles and brighten dull-looking skin. This calming serum is formulated around Bifida Ferment Filtrate and Resveratrol to calm redness and strengthen the skin barrier. Propylene Glycol Dimethicone Glycerin Ascorbic Acid Ethylhexyl Palmitate Cetyl PEG/PPG-10/1 Dimethicone Dimethicone Crosspolymer Ascorbyl Glucoside Cyclohexasiloxane Hydroxyethylpiperazine Ethane Sulfonic Acid Lauroyl Lysine Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer Polysilicone-11 Adenosine Hydrolyzed Hyaluronic Acid Limonene Isobutane Citrus Aurantium Dulcis Peel Oil Citrus Limon Peel Oil Citral Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Propylene Glycol, Dimethicone, Glycerin, Ascorbic Acid, Ethylhexyl Palmitate, Cetyl PEG/PPG-10/1 Dimethicone, Dimethicone Crosspolymer, Ascorbyl Glucoside, Cyclohexasiloxane, Hydroxyethylpiperazine Ethane Sulfonic Acid, Lauroyl Lysine, Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer, Polysilicone-11, Adenosine, Hydrolyzed Hyaluronic Acid, Limonene, Isobutane, Citrus Aurantium Dulcis Peel Oil, Citrus Limon Peel Oil, Citral, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Water Bifida Ferment Filtrate PEG-8 Butylene Glycol Polysorbate 80 Bis-PEG-18 Methyl Ether Dimethyl Silane Tripeptide-32 Hydrolyzed Yeast Protein Lactobacillus Ferment Sodium Hyaluronate Caffeine Hypnea Musciformis Extract Citrullus Lanatus Fruit Extract Lens Esculenta Fruit Extract Pyrus Malus Fruit Extract Magnolia Officinalis Bark Extract Resveratrol Poria Cocos Sclerotium Extract Silybum Marianum Fruit Extract Sapindus Mukorossi Fruit Extract Anthemis Nobilis Flower Extract Sodium Lactate Ethylhexylglycerin Potassium Gluconate Sodium PCA Caesalpinia Spinosa Gum Sucrose Caprylyl Glycol Hexylene Glycol Carbomer Xanthan Gum PPG-6-Decyltetradeceth-30 PPG-5-Ceteth-20 BHT Disodium EDTA Sodium Hydroxide Potassium Sorbate Phenoxyethanol Sodium Benzoate CI 14700 CI 19140 Water, Bifida Ferment Filtrate, PEG-8, Butylene Glycol, Glycerin, Polysorbate 80, Bis-PEG-18 Methyl Ether Dimethyl Silane, Tripeptide-32, Hydrolyzed Yeast Protein, Lactobacillus Ferment, Sodium Hyaluronate, Caffeine, Hypnea Musciformis Extract, Citrullus Lanatus Fruit Extract, Lens Esculenta Fruit Extract, Pyrus Malus Fruit Extract, Magnolia Officinalis Bark Extract, Resveratrol, Poria Cocos Sclerotium Extract, Silybum Marianum Fruit Extract, Sapindus Mukorossi Fruit Extract, Anthemis Nobilis Flower Extract, Sodium Lactate, Ethylhexylglycerin, Potassium Gluconate, Sodium PCA, Caesalpinia Spinosa Gum, Sucrose, Caprylyl Glycol, Hexylene Glycol, Carbomer, Xanthan Gum, PPG-6-Decyltetradeceth-30, PPG-5-Ceteth-20, BHT, Disodium EDTA, Sodium Hydroxide, Potassium Sorbate, Phenoxyethanol, Sodium Benzoate, CI 14700, CI 19140 Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum. Topically, glycerin does several things at once: Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3. Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin. This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products. Just know very high concentrations (>40%) can feel tacky in low humidity. Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.