Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum Versus Dr. Dennis Gross Skincare Vitamin C Lactic 15% Firm & Bright Serum

Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum Versus Dr. Dennis Gross Skincare Vitamin C Lactic 15% Firm & Bright Serum Detailed comparison of Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum versus Dr. Dennis Gross Skincare Vitamin C Lactic 15% Firm & Bright Serum. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Niacinamide to brighten dull-looking skin and soften the look of wrinkles. This anti-aging serum is formulated around Ascorbic Acid and Lactic Acid to soften the look of wrinkles and brighten dull-looking skin. 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 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 Dipropylene Glycol Ricinoleth-40 Aminomethyl Propanol Tocopherol Glycyrrhiza Glabra Root Extract Ferulic Acid Morus Alba Fruit Extract Sodium Hyaluronate Glycolic Acid Adenosine Water, Dipropylene Glycol, Ascorbic Acid, Dimethyl Isosorbide, Ricinoleth-40, Aminomethyl Propanol, Lactic Acid, Tocopherol, Glycyrrhiza Glabra Root Extract, Ferulic Acid, Morus Alba Fruit Extract, Sodium Hyaluronate, Glycolic Acid, Adenosine, Glycerin, Phenoxyethanol 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. 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: Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients. Dimethyl Isosorbide (often shortened to DMI) is a sugar-derived solvent made from sorbitol. It's used to dissolve tricky ingredients and help them mix smoothly into a formula. Many actives sit as gritty crystals when undissolved, so DMI swoops in to full dissolve them. This helps improve texture, stability, and how evenly an active is distributed. It does have a penetration-enhancing reputation that is a bit more nuanced than marketing suggests; a cell study on human skin found that 10% DMI didn't significantly boost the permeation of Hydroquinone, Salicylic Acid, or Octadecenedioic Acid compared to controls (though it did improve their solubility in the formula itself). Typical usage concentrations usually range from 1-10% depending on the formula's needs; this ingredient is also well tolerated at these levels. Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum. Topically, gly