Olehenriksen C-Rush Brightening Gel Crème Versus Olay Vitamin C + Peptide 24

Olehenriksen C-Rush Brightening Gel Crème Versus Olay Vitamin C + Peptide 24 Detailed comparison of Olehenriksen C-Rush Brightening Gel Crème versus Olay Vitamin C + Peptide 24. This brightening moisturizer is formulated around 3-O-Ethyl Ascorbic Acid and Tetrahexyldecyl Ascorbate to brighten dull-looking skin and fade the look of dark spots. This brightening moisturizer is formulated around Niacinamide and 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and soften the look of wrinkles. Water Glycerin Dicaprylyl Carbonate Propanediol Caprylic/Capric Triglyceride 3-O-Ethyl Ascorbic Acid Glycereth-26 Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer Hydrolyzed Jojoba Esters Cetearyl Alcohol Polyacrylate Crosspolymer-6 Hydroxyacetophenone Panthenol Polyglyceryl-3 Methylglucose Distearate Tetrahexyldecyl Ascorbate Linoleic Acid Citric Acid Phenoxyethanol Parfum Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Xanthan Gum Cetearyl Glucoside Linolenic Acid Citrus Aurantium Dulcis Fruit Extract Citrus Limon Fruit Extract Hippophae Rhamnoides Extract Lycium Barbarum Fruit Extract Rosa Canina Fruit Extract Ethylhexylglycerin Leuconostoc/Radish Root Ferment Filtrate Sodium Citrate Camellia Japonica Flower Extract Aroma Sodium Hyaluronate Sodium Polyacrylate Sodium Phytate Hyaluronic Acid Triacetin Hydrolyzed Vegetable Protein Ascorbic Acid Tocopherol Limonene Linalool Benzyl Alcohol CI 15985 CI 19140 Water, Glycerin, Dicaprylyl Carbonate, Propanediol, Caprylic/Capric Triglyceride, 3-O-Ethyl Ascorbic Acid, Glycereth-26, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Hydrolyzed Jojoba Esters, Cetearyl Alcohol, Polyacrylate Crosspolymer-6, Hydroxyacetophenone, Panthenol, Polyglyceryl-3 Methylglucose Distearate, Tetrahexyldecyl Ascorbate, Linoleic Acid, Citric Acid, Phenoxyethanol, Parfum, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Xanthan Gum, Cetearyl Glucoside, Linolenic Acid, Citrus Aurantium Dulcis Fruit Extract, Citrus Limon Fruit Extract, Hippophae Rhamnoides Extract, Lycium Barbarum Fruit Extract, Rosa Canina Fruit Extract, Ethylhexylglycerin, Leuconostoc/Radish Root Ferment Filtrate, Sodium Citrate, Camellia Japonica Flower Extract, Aroma, Sodium Hyaluronate, Sodium Polyacrylate, Sodium Phytate, Hyaluronic Acid, Triacetin, Hydrolyzed Vegetable Protein, Ascorbic Acid, Tocopherol, Limonene, Linalool, Benzyl Alcohol, CI 15985, CI 19140 Isohexadecane Niacinamide Dimethicone Lactic Acid Isopropyl Isostearate Sodium Polyacryloyldimethyl Taurate Stearyl Alcohol Palmitoyl Pentapeptide-4 Sodium Lactate Trehalose Behenyl Alcohol Cetyl Alcohol Stearic Acid Palmitic Acid Dimethiconol PEG-100 Stearate Sodium Benzoate 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 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. Ascorbic Acid is is pure Vitamin C and is the biologically active form used directly by skin. Not only is vitamin C great for your overall health and immune system, but it also has plenty of benefits for your skin. It is best supported by academic literature for: Topical vitamin C has been shown to help neutralize oxidative stress from UV and pollution, helping to improve photoaging and hyperpigmentation when used consistently. One clinical study found that using 5% topical vitamin C for six months improved signs of photodamaged skin, both on the surface and in the deeper structural layers of the skin. While vitamin C doesn’t replace sunscreen, studies show it can boost photoprotection when combined with Vitamin E and ferulic acid. These two ingredients help improve stability and protective effects. The big downside of this ingredient is formulation difficulty. Vitamin C is prone to oxidation and doesn't penetrate the skin unless formulated correctly. Research found that vitamin C absorbs into the skin best at a low pH (< 3.5) with about 20% being the upper limit for effective absorption. Skin levels can saturate after repeated application; this means your skin won’t keep absorbing more once it’s full of vitamin C. This is why more isn’t always better with vitamin C and why very high concentrations don’t necessarily give extra benefits. Ascorbic acid generally works well with many skincare ingredients but can be irritating when combined with other active ingredients. Strong oxidizing acne treatments like benzoyl peroxide can reduce the effectiveness of vitamin C if they are used at the same time; they are often recommended for use at different times of day. Read more about other types of Vitamin C: