Olay Vitamin C + Peptide 24 Brightening Serum Versus Olay Niacinamide + Vitamin C Brightening Face Moisturiser

Olay Vitamin C + Peptide 24 Brightening Serum Versus Olay Niacinamide + Vitamin C Brightening Face Moisturiser Detailed comparison of Olay Vitamin C + Peptide 24 Brightening Serum versus Olay Niacinamide + Vitamin C Brightening Face Moisturiser. This brightening serum is formulated around Niacinamide and Lactic Acid to brighten dull-looking skin and refine skin texture. This brightening moisturizer is formulated around Niacinamide and Lactic Acid to brighten dull-looking skin and refine skin texture. Water Glycerin Dimethicone Niacinamide Lactic Acid Polyacrylate Crosspolymer-6 3-O-Ethyl Ascorbic Acid Palmitoyl Pentapeptide-4 Panthenol Trehalose PEG-11 Methyl Ether Dimethicone Sodium Lactate Sodium Benzoate Parfum Hydroxylauric Acid Ascorbic Acid Avena Sativa Peptide Water, Glycerin, Dimethicone, Niacinamide, Lactic Acid, Polyacrylate Crosspolymer-6, 3-O-Ethyl Ascorbic Acid, Palmitoyl Pentapeptide-4, Panthenol, Trehalose, PEG-11 Methyl Ether Dimethicone, Sodium Lactate, Sodium Benzoate, Parfum, Hydroxylauric Acid, Ascorbic Acid, Avena Sativa Peptide Isohexadecane Isopropyl Isostearate Sodium Polyacryloyldimethyl Taurate Stearyl Alcohol Cetyl Alcohol Behenyl Alcohol Dimethiconol PEG-100 Stearate Cetearyl Alcohol Cetearyl Glucoside Palmitic Acid Stearic Acid Water, Glycerin, Isohexadecane, Niacinamide, Dimethicone, Lactic Acid, Isopropyl Isostearate, Sodium Polyacryloyldimethyl Taurate, Stearyl Alcohol, Cetyl Alcohol, Sodium Lactate, Panthenol, Behenyl Alcohol, 3-O-Ethyl Ascorbic Acid, Dimethiconol, PEG-100 Stearate, Cetearyl Alcohol, Cetearyl Glucoside, Parfum, Palmitic Acid, Sodium Benzoate, Stearic Acid, Trehalose, Palmitoyl Pentapeptide-4 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. 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. Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient. Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy. 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. Lactic A