Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum Versus Shiseido Benefiance Wrinkle Smoothing Contour Serum

Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum Versus Shiseido Benefiance Wrinkle Smoothing Contour Serum Detailed comparison of Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum versus Shiseido Benefiance Wrinkle Smoothing Contour 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 Retinyl Acetate and Caffeine to soften the look of wrinkles. 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 Pentaerythrityl Tetraethylhexanoate Dimethicone Dipropylene Glycol Behenyl Alcohol Silica PEG-400 Batyl Alcohol Methylparaben Carbomer Dimethylacrylamide/Sodium Acryloyldimethyltaurate Crosspolymer Trisodium EDTA Tocopheryl Acetate Retinyl Acetate Alcohol Helianthus Annuus Seed Oil BHT Polyquaternium-51 Parfum Potassium Hydroxide Caffeine Acrylates/C10-30 Alkyl Acrylate Crosspolymer PPG-3 Dipivalate Rosa Canina Fruit Oil CI 77492 Tocopherol Sapindus Mukorossi Peel Extract Linalool Limonene Sodium Metabisulfite Triisostearin Uncaria Gambir Extract Citronellol Angelica Keiskei Leaf/Stem Extract Trimethylolpropane Triethylhexanoate Geraniol Cellulose Camellia Sinensis Leaf Extract Sodium Acetylated Hyaluronate Hydroxyproline Ziziphus Jujuba Fruit Extract Chlorella Vulgaris Extract Methicone Tetradecene Eucheuma Serra/Grateloupia Sparsa/Saccharina Angustata/Ulva Linza/Undaria Pinnatifida Extract Curcuma Longa Rhizome Extract Saccharina Angustata/Undaria Pinnatifida Extract Panax Ginseng Root Extract Ascorbyl Dipalmitate Water, Butylene Glycol, Pentaerythrityl Tetraethylhexanoate, Dimethicone, Glycerin, Dipropylene Glycol, Sd Alcohol 40-B, Behenyl Alcohol, Silica, PEG-400, Batyl Alcohol, Phenoxyethanol, Methylparaben, Carbomer, Dimethylacrylamide/Sodium Acryloyldimethyltaurate Crosspolymer, Trisodium EDTA, Tocopheryl Acetate, Retinyl Acetate, Alcohol, Helianthus Annuus Seed Oil, BHT, Polyquaternium-51, Parfum, Potassium Hydroxide, Caffeine, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, PPG-3 Dipivalate, Rosa Canina Fruit Oil, CI 77492, Tocopherol, Sapindus Mukorossi Peel Extract, Linalool, Limonene, Sodium Metabisulfite, Triisostearin, These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive. Another perk of this ingredient is that it stays functional across a wide pH range (3-10). You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own. Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU. Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages. Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon. SD Alcohol 40-B is created by denaturing ethanol with tert-Butyl alcohol and denatonium benzoate. It is a solvent and astringent. The 'SD' stands for 'specially denatured'. Denatured alcohol means the structure has b