Olay Vitamin C + Peptide 24 Brightening Serum Versus RoC Multi Correxion Revive And Glow Daily Serum

Olay Vitamin C + Peptide 24 Brightening Serum Versus RoC Multi Correxion Revive And Glow Daily Serum Detailed comparison of Olay Vitamin C + Peptide 24 Brightening Serum versus RoC Multi Correxion Revive And Glow Daily Serum. This brightening serum is formulated around Niacinamide and Lactic Acid to brighten dull-looking skin and refine skin texture. This brightening serum is formulated around 3-O-Ethyl Ascorbic 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 Propanediol PPG-24-Glycereth-24 Troxerutin Cistus Monspeliensis Flower/Leaf/Stem Extract Nonapeptide-1 Polygonum Aviculare Extract Terminalia Ferdinandiana Fruit Extract PEG-40 Hydrogenated Castor Oil Sodium Polyacryloyldimethyl Taurate PPG-26-Buteth-26 Maltodextrin Caprylyl Glycol Potassium Sorbate Sodium Phosphate 1,2-Hexanediol Tetrasodium EDTA Disodium Phosphate Citric Acid Caprylhydroxamic Acid Limonene Linalool Citral CI 15985 Water, Propanediol, PPG-24-Glycereth-24, Glycerin, 3-O-Ethyl Ascorbic Acid, Troxerutin, Cistus Monspeliensis Flower/Leaf/Stem Extract, Nonapeptide-1, Polygonum Aviculare Extract, Terminalia Ferdinandiana Fruit Extract, PEG-40 Hydrogenated Castor Oil, Sodium Polyacryloyldimethyl Taurate, PPG-26-Buteth-26, Maltodextrin, Caprylyl Glycol, Potassium Sorbate, Sodium Phosphate, Sodium Benzoate, 1,2-Hexanediol, Tetrasodium EDTA, Disodium Phosphate, Citric Acid, Caprylhydroxamic Acid, Parfum, Limonene, Linalool, Citral, CI 15985 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. Parfum is a catch-all term for an ingredient or more that is used to give a scent to products. Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture. For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations. The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. How