Olay Vitamin C + Peptide 24 Versus Naturium Dew-Glow Moisturizer SPF 50

Olay Vitamin C + Peptide 24 Versus Naturium Dew-Glow Moisturizer SPF 50 Detailed comparison of Olay Vitamin C + Peptide 24 versus Naturium Dew-Glow Moisturizer SPF 50. This brightening moisturizer is formulated around Niacinamide and 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and soften the look of wrinkles. This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging. Water Glycerin Isohexadecane Niacinamide Dimethicone Lactic Acid Isopropyl Isostearate Sodium Polyacryloyldimethyl Taurate Stearyl Alcohol 3-O-Ethyl Ascorbic Acid Palmitoyl Pentapeptide-4 Panthenol Sodium Lactate Trehalose Cetearyl Glucoside Cetearyl Alcohol Behenyl Alcohol Cetyl Alcohol Stearic Acid Palmitic Acid Dimethiconol PEG-100 Stearate Sodium Benzoate Parfum Ascorbic Acid Avena Sativa Peptide Water, Glycerin, Isohexadecane, Niacinamide, Dimethicone, Lactic Acid, Isopropyl Isostearate, Sodium Polyacryloyldimethyl Taurate, Stearyl Alcohol, 3-O-Ethyl Ascorbic Acid, Palmitoyl Pentapeptide-4, Panthenol, Sodium Lactate, Trehalose, Cetearyl Glucoside, Cetearyl Alcohol, Behenyl Alcohol, Cetyl Alcohol, Stearic Acid, Palmitic Acid, Dimethiconol, PEG-100 Stearate, Sodium Benzoate, Parfum, Ascorbic Acid, Avena Sativa Peptide Homosalate 10% Ethylhexyl Salicylate 5% Butyl Methoxydibenzoylmethane 3% Butyloctyl Salicylate C12-15 Alkyl Benzoate Calcium Sodium Borosilicate Glyceryl Stearate Ethylhexyl Methoxycrylene Vp/Eicosene Copolymer Stearyl Dimethicone Argania Spinosa Kernel Oil Tocopheryl Acetate 1,2-Hexanediol Tocopherol Cetearyl Olivate Bisabolol Sodium Hyaluronate Squalane Ammonium Acryloyldimethyltaurate/Vp Copolymer Hydroxyacetophenone Silica Sodium Stearoyl Glutamate Octadecene Sorbitan Olivate Sorbitan Oleate Caprylyl/Capryl Glucoside Xanthan Gum Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Trisodium Ethylenediamine Disuccinate Polyisobutene Citric Acid Sodium Hydroxide Homosalate 10%, Ethylhexyl Salicylate 5%, Butyl Methoxydibenzoylmethane 3%, Water, Butyloctyl Salicylate, C12-15 Alkyl Benzoate, Calcium Sodium Borosilicate, Glycerin, Glyceryl Stearate, Ethylhexyl Methoxycrylene, Vp/Eicosene Copolymer, Stearyl Dimethicone, Argania Spinosa Kernel Oil, Tocopheryl Acetate, 1,2-Hexanediol, Niacinamide, Tocopherol, Cetearyl Olivate, Bisabolol, 3-O-Ethyl Ascorbic Acid, Sodium Hyaluronate, Squalane, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Hydroxyacetophenone, Silica, Sodium Stearoyl Glutamate, Octadecene, Sorbitan Olivate, Sorbitan Oleate, Caprylyl/Capryl Glucoside, Xanthan Gum, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Trisodium Ethylenediamine Disuccinate, Polyisobutene, Citric Acid, Sodium Hydroxide These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 3-O-Ethyl Ascorbic Acid is one of the most popular "stable" vitamin C derivatives in skincare. Plain ascorbic acid is fantastic but notoriously fragile; it browns, oxidizes, and loses potency fast. So attaching an ethyl group to the third carbon of the molecule gives it some cool perks: In a formula, it does the 3 classic vitamin C jobs: it acts as an antioxidant, helps brighten skin tone by inhibiting tyrosinase, and supports collagen. The evidence is reasonably solid for a cosmetic ingredient; Liao and colleagues (2018) showed it's significantly more stable than ascorbic acid while still being effective. A 2021 study by Zerbinati and colleagues tested a serum with 30% 3-O-ethyl-l-ascorbic acid and 1% lactic acid significantly increased collagen production, reduced UVB-induced DNA damage, and decreased melanin on a reconstructed pigmented skin model. Typical real world usage sits around 0.5-5% (and 1-2% is common for daily serums). Amounts up to 30% have been shown to be non-irritating on human skin samples, but two isolated cases reported allergic contact dermatitis so a patch test is sensible if you have reactive skin. 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. Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging. And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin. You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this. In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it. If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare. When incorporating niacinamide into your routine, look out for concentration amounts. Typic