E45 Face Hydrating Serum Versus Estée Lauder Advanced Night Repair Synchronized Multi-Recovery Complex Serum

E45 Face Hydrating Serum Versus Estée Lauder Advanced Night Repair Synchronized Multi-Recovery Complex Serum Detailed comparison of E45 Face Hydrating Serum versus Estée Lauder Advanced Night Repair Synchronized Multi-Recovery Complex Serum. This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This barrier-repair serum is formulated around Bifida Ferment Lysate and Sodium Hyaluronate to strengthen the skin barrier and soften the look of wrinkles. No concerns Water Propanediol Butylene Glycol Sodium Hyaluronate Hydrolyzed Algin Sea Water Chlorella Vulgaris Extract Glycerin Carbomer Sodium Hydroxide Tetrasodium Glutamate Diacetate Phenoxyethanol Hydroxyacetophenone Water, Propanediol, Butylene Glycol, Sodium Hyaluronate, Hydrolyzed Algin, Sea Water, Chlorella Vulgaris Extract, Glycerin, Carbomer, Sodium Hydroxide, Tetrasodium Glutamate Diacetate, Phenoxyethanol, Hydroxyacetophenone Bifida Ferment Lysate PEG-8 Bis-PEG-18 Methyl Ether Dimethyl Silane Methyl Gluceth-20 Glycereth-26 PEG-75 Adansonia Digitata Seed Extract Tripeptide-32 Faex Extract Lactobacillus Ferment Cola Acuminata Seed Extract Anthemis Nobilis Flower Extract Pantethine Caffeine Lecithin Sodium Rna Bisabolol Squalane Oleth-3 Phosphate Caprylyl Glycol Oleth-3 Oleth-5 Choleth-24 Hydrogenated Lecithin Jojoba Wax PEG-120 Esters Ceteth-24 Tocopheryl Acetate Triethanolamine Tetrasodium EDTA BHT Xanthan Gum Potassium Sorbate Disodium EDTA CI 14700 CI 19140 Water, Bifida Ferment Lysate, PEG-8, Propanediol, Bis-PEG-18 Methyl Ether Dimethyl Silane, Methyl Gluceth-20, Glycereth-26, PEG-75, Butylene Glycol, Adansonia Digitata Seed Extract, Tripeptide-32, Sodium Hyaluronate, Faex Extract, Lactobacillus Ferment, Cola Acuminata Seed Extract, Anthemis Nobilis Flower Extract, Hydrolyzed Algin, Pantethine, Caffeine, Lecithin, Sodium Rna, Bisabolol, Squalane, Glycerin, Oleth-3 Phosphate, Caprylyl Glycol, Oleth-3, Oleth-5, Choleth-24, Hydrogenated Lecithin, Jojoba Wax PEG-120 Esters, Ceteth-24, Tocopheryl Acetate, Carbomer, Triethanolamine, Tetrasodium EDTA, BHT, Xanthan Gum, Potassium Sorbate, Disodium EDTA, Phenoxyethanol, CI 14700, CI 19140 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. 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. This ingredient is made from brown seaweed and is often used to improve the texture of products. According to a manufacturer, this is a lightweight ingredient and a smaller form of algin. This allows it to be easily mixed with water and improve the spreadability of products. It also has conditioning properties that mostly sits on the surface of skin as an emollient. Some lab research has explored it in anti-aging formulas, but the results were modest. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions