By Nature Brightening Face Serum with Vitamin C + Collagen Versus Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum

By Nature Brightening Face Serum with Vitamin C + Collagen Versus Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum Detailed comparison of By Nature Brightening Face Serum with Vitamin C + Collagen versus Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum. This calming serum is formulated around Tilia Cordata Flower Water and Ascorbyl Tetraisopalmitate to calm redness. 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 Tilia Cordata Flower Water Glycerin Polyglyceryl-4 Laurate/Sebacate Polyglyceryl-6 Caprylate/Caprate Ascorbyl Tetraisopalmitate Acacia Seyal Gum Extract Chamomilla Recutita Flower Extract Sodium Acrylates Copolymer Isoamyl Laurate Xanthan Gum Lecithin Sodium Citrate Parfum Ethylhexylglycerin Citric Acid Potassium Sorbate Sodium Hydroxide Curcuma Longa Root Extract Phenoxyethanol Citral Limonene Linalool Water, Tilia Cordata Flower Water, Glycerin, Polyglyceryl-4 Laurate/Sebacate, Polyglyceryl-6 Caprylate/Caprate, Ascorbyl Tetraisopalmitate, Acacia Seyal Gum Extract, Chamomilla Recutita Flower Extract, Sodium Acrylates Copolymer, Isoamyl Laurate, Xanthan Gum, Lecithin, Sodium Citrate, Parfum, Ethylhexylglycerin, Citric Acid, Potassium Sorbate, Sodium Hydroxide, Curcuma Longa Root Extract, Phenoxyethanol, Citral, Limonene, Linalool 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 Phytic Acid Tetrasodium EDTA Butylene Glycol Polysorbate 20 T-Butyl Alcohol Polysorbate 80 Denatonium Benzoate Benzyl Alcohol Sodium Benzoate 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. Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. Curcuma Longa Root Extract comes from the rhizome (underground stem) of the turmeric plant. While the official EU Cosing Database lists this ingredient as a fragrance, it actually does more than give products a scent. This ingredient contains a group of yellow pigments called curcuminoids (mostly curcumin) that give it genuine antioxidant and anti-inflammatory activity in skin. Reviews of topical clinical studies have found turmeric/curcumin to be generally well-tolerated and useful across conditions like eczema and mild inflammation. One thing working in its favor is that curcumin barely penetrates; in lab skin-permeation testing, the curcuminoids mostly stayed in the outermost layer of skin. This is a good thing because its soothing and antioxidant activity is a surface-level job anyway. At this time, industry data shows there's no single "correct" cosmetic percentage. It's used across a wide range depending on the product and varies from tiny fractions of a percent up to a few percent. Allergy-wise, curcumin is a documented (but uncommon) contact allergen. It can also cross react with related plants, so anyone with a turmeric/ginger/cinnamon allergy or reactive skin should patch test first. 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 o