Glow Recipe Guava Vitamin C Dark Spot Treatment Serum Versus Olay Vitamin C + Peptide 24

Glow Recipe Guava Vitamin C Dark Spot Treatment Serum Versus Olay Vitamin C + Peptide 24 Detailed comparison of Glow Recipe Guava Vitamin C Dark Spot Treatment Serum versus Olay Vitamin C + Peptide 24. This brightening serum is formulated around Tetrahexyldecyl Ascorbate and Tranexamic Acid to fade the look of dark spots and brighten dull-looking skin. 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 Propanediol C9-12 Alkane Psidium Guajava Fruit Extract Tetrahexyldecyl Ascorbate Tranexamic Acid Sodium Polyacryloyldimethyl Taurate 3-O-Ethyl Ascorbic Acid Ascorbyl Glucoside Magnesium Ascorbyl Phosphate Sodium Ascorbyl Phosphate Psidium Guajava Seed Oil Tocopherol Tocopheryl Acetate Sodium Hyaluronate Ferulic Acid Tremella Fuciformis Sporocarp Extract Pyrus Malus Fruit Extract Musa Sapientum Fruit Extract Prunus Armeniaca Kernel Extract Pyrus Communis Fruit Extract Rubus Idaeus Fruit Extract Melia Azadirachta Flower Extract Melia Azadirachta Leaf Extract Corallina Officinalis Extract Coccinia Indica Fruit Extract Hexanoyl Dipeptide-3 Norleucine Acetate Polyglyceryl-10 Dioleate Glycerin 1,2-Hexanediol Caprylic/Capric Triglyceride Caprylyl Glycol Hydroxyacetophenone Sodium Stearoyl Glutamate Coco-Caprylate/Caprate Betaine Lecithin Polyglyceryl-10 Dipalmitate Sodium Citrate Sodium Phytate Potassium Sorbate Decyl Glucoside Lauryl Glucoside Ethylhexylglycerin Citric Acid Xanthan Gum Phenoxyethanol Water, Propanediol, C9-12 Alkane, Psidium Guajava Fruit Extract, Tetrahexyldecyl Ascorbate, Tranexamic Acid, Sodium Polyacryloyldimethyl Taurate, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Magnesium Ascorbyl Phosphate, Sodium Ascorbyl Phosphate, Psidium Guajava Seed Oil, Tocopherol, Tocopheryl Acetate, Sodium Hyaluronate, Ferulic Acid, Tremella Fuciformis Sporocarp Extract, Pyrus Malus Fruit Extract, Musa Sapientum Fruit Extract, Prunus Armeniaca Kernel Extract, Pyrus Communis Fruit Extract, Rubus Idaeus Fruit Extract, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Corallina Officinalis Extract, Coccinia Indica Fruit Extract, Hexanoyl Dipeptide-3 Norleucine Acetate, Polyglyceryl-10 Dioleate, Glycerin, 1,2-Hexanediol, Caprylic/Capric Triglyceride, Caprylyl Glycol, Hydroxyacetophenone, Sodium Stearoyl Glutamate, Coco-Caprylate/Caprate, Betaine, Lecithin, Polyglyceryl-10 Dipalmitate, Sodium Citrate, Sodium Phytate, Potassium Sorbate, Decyl Glucoside, Lauryl Glucoside, Ethylhexylglycerin, Citric Acid, Xanthan Gum, Phenoxyethanol Isohexadecane Niacinamide Dimethicone Lactic Acid Isopropyl Isostearate Stearyl Alcohol 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 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. This is a lab-made ingredient that plays a huge role in improving the texture of a formula. It's used to thicken watery gel-creams, prevent water + oil from separating, and give products a silky, non-greasy glide. Safety-wise, a panel of independent toxicologists reviewed this ingredient and concluded it to be safe in cosmetics in the present practices of use and concentration. A separate sensitization patch test on humans also showed no evidence of allergic reactivity, and a true allergy to this ingredient is considered rare. Typical usage levels range from 0.015%-3% in leave-on products and 0.078%-3.2% in rinse-off products. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.