No7 Radiance+ 15% Vitamin C Serum Versus Olay Vitamin C + Peptide 24 Brightening Serum

No7 Radiance+ 15% Vitamin C Serum Versus Olay Vitamin C + Peptide 24 Brightening Serum Detailed comparison of No7 Radiance+ 15% Vitamin C Serum versus Olay Vitamin C + Peptide 24 Brightening Serum. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and fade the look of dark spots. This brightening serum is formulated around Niacinamide and Lactic Acid to brighten dull-looking skin and refine skin texture. Water 3-O-Ethyl Ascorbic Acid Propylene Glycol Polysorbate 20 Polyacrylate Crosspolymer-6 Ethylhexylglycerin Sodium Hyaluronate Benzyl Alcohol Allantoin Xanthan Gum PEG-40 Hydrogenated Castor Oil Sodium Citrate Limonene Dipropylene Glycol Linalool T-Butyl Alcohol Parfum Citric Acid Denatonium Benzoate Water, 3-O-Ethyl Ascorbic Acid, Propylene Glycol, Polysorbate 20, Polyacrylate Crosspolymer-6, Ethylhexylglycerin, Sodium Hyaluronate, Benzyl Alcohol, Allantoin, Xanthan Gum, PEG-40 Hydrogenated Castor Oil, Sodium Citrate, Limonene, Dipropylene Glycol, Linalool, T-Butyl Alcohol, Parfum, Citric Acid, Denatonium Benzoate Glycerin Dimethicone Niacinamide Lactic Acid Palmitoyl Pentapeptide-4 Panthenol Trehalose PEG-11 Methyl Ether Dimethicone Sodium Lactate Sodium Benzoate 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 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. 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. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards. One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'. Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol. Parfum can also be used to mask or cover an unpleasant scent. The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional. Polyacrylate Crosspolymer-6 is a texture enhancer and pH adjuster. It is be used to thicken water-based products and create a gel-texture with a velvet feel. One manufacturer claims this ingredient to have a