Pure Choice Brightening Vitamin C Serum Versus Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum

Pure Choice Brightening Vitamin C Serum Versus Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum Detailed comparison of Pure Choice Brightening Vitamin C Serum versus Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum. This brightening serum is formulated around Sodium Ascorbyl Phosphate and Niacinamide to brighten dull-looking skin and fade the look of dark spots. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Niacinamide to brighten dull-looking skin and soften the look of wrinkles. Water Sodium Ascorbyl Phosphate Niacinamide Sodium Hyaluronate Pentylene Glycol Glycerin Butylene Glycol Sodium PCA Thioctic Acid Camellia Sinensis Leaf Extract Glycyrrhiza Glabra Root Glycyrrhiza Glabra Root Extract Rosa Canina Fruit Extract Arginine Taurine 3-O-Ethyl Ascorbic Acid Phenoxyethanol Polysorbate 80 Xanthan Gum Carbomer Triethanolamine Tetrasodium EDTA Sodium Benzoate Chlorphenesin Water, Sodium Ascorbyl Phosphate, Niacinamide, Sodium Hyaluronate, Pentylene Glycol, Glycerin, Butylene Glycol, Sodium PCA, Thioctic Acid, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root, Glycyrrhiza Glabra Root Extract, Rosa Canina Fruit Extract, Arginine, Taurine, 3-O-Ethyl Ascorbic Acid, Phenoxyethanol, Polysorbate 80, Xanthan Gum, Carbomer, Triethanolamine, Tetrasodium EDTA, Sodium Benzoate, Chlorphenesin Glycereth-7 Triacetate Lactic Acid Sd Alcohol 40-B Hydroxyethylcellulose Dimethyl Isosorbide Ascorbic Acid Collagen Amino Acids Superoxide Dismutase Glycine Carnitine Hcl Ubiquinone Hexylresorcinol Emblica Officinalis Fruit Extract Hydrolyzed Soy Protein Tetrahexyldecyl Ascorbate Isoquercetin Mandelic Acid Pueraria Lobata Root Extract Curcuma Longa Root Extract Phytic Acid Citric Acid Sodium Citrate Polysorbate 20 T-Butyl Alcohol Sodium Hydroxide Denatonium Benzoate Benzyl Alcohol Potassium Sorbate Water, Glycerin, 3-O-Ethyl Ascorbic Acid, Niacinamide, Glycereth-7 Triacetate, Lactic Acid, Sd Alcohol 40-B, Hydroxyethylcellulose, Dimethyl Isosorbide, Ascorbic Acid, Collagen Amino Acids, Superoxide Dismutase, Glycine, Carnitine Hcl, Ubiquinone, Hexylresorcinol, Emblica Officinalis Fruit Extract, Hydrolyzed Soy Protein, Tetrahexyldecyl Ascorbate, Isoquercetin, Mandelic Acid, Pueraria Lobata Root Extract, Curcuma Longa Root Extract, Phytic Acid, Citric Acid, Tetrasodium EDTA, Sodium Citrate, Butylene Glycol, Xanthan Gum, Polysorbate 20, T-Butyl Alcohol, Sodium Hydroxide, Polysorbate 80, Denatonium Benzoate, Benzyl Alcohol, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate 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. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. 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. Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging. And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin. You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this. In very rare cases, some individuals may