Dr. Dennis Gross Skincare Advanced Retinol + Ferulic Texture Renewal Serum Versus SkinMedica TNS® Advanced+ Serum

Dr. Dennis Gross Skincare Advanced Retinol + Ferulic Texture Renewal Serum Versus SkinMedica TNS® Advanced+ Serum Detailed comparison of Dr. Dennis Gross Skincare Advanced Retinol + Ferulic Texture Renewal Serum versus SkinMedica TNS® Advanced+ Serum. This smoothing serum is formulated around Lactic Acid and Retinol to refine skin texture and soften the look of wrinkles. Water Propylene Glycol Dimethyl Isosorbide Polyglyceryl-10 Laurate Glycerin Ethoxydiglycol Lactic Acid Hydroxypropyl Starch Phosphate Mandelic Acid Retinol Bakuchiol Nephelium Lappaceum Leaf Extract Ferulic Acid Squalane Linoleic Acid Salicylic Acid Salix Alba Bark Extract Phospholipids Soy Isoflavones Sodium Hyaluronate Saccharide Isomerate Ubiquinone Sodium PCA Hexylresorcinol Quercetin Adenosine Morus Alba Bark Extract Panthenol Glycolic Acid Maltodextrin Xanthan Gum Leuconostoc/Radish Root Ferment Filtrate Caprylic/Capric Triglyceride Potassium Hydroxide Polysorbate 20 Sodium Phytate Citric Acid Sodium Citrate Phenoxyethanol Sodium Benzoate Potassium Sorbate Water, Propylene Glycol, Dimethyl Isosorbide, Polyglyceryl-10 Laurate, Glycerin, Ethoxydiglycol, Lactic Acid, Hydroxypropyl Starch Phosphate, Mandelic Acid, Retinol, Bakuchiol, Nephelium Lappaceum Leaf Extract, Ferulic Acid, Squalane, Linoleic Acid, Salicylic Acid, Salix Alba Bark Extract, Phospholipids, Soy Isoflavones, Sodium Hyaluronate, Saccharide Isomerate, Ubiquinone, Sodium PCA, Hexylresorcinol, Quercetin, Adenosine, Morus Alba Bark Extract, Panthenol, Glycolic Acid, Maltodextrin, Xanthan Gum, Leuconostoc/Radish Root Ferment Filtrate, Caprylic/Capric Triglyceride, Potassium Hydroxide, Polysorbate 20, Sodium Phytate, Citric Acid, Sodium Citrate, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate Pentylene Glycol Human Neonatal Fibroblast Conditioned Media Glycereth-7 Triacetate Shea Butter Ethyl Esters Lactococcus Ferment Lysate Whey Protein Chlorella Vulgaris Extract Dimer Tripeptide-43 Vitis Vinifera Flower Cell Extract Pyrus Malus Fruit Extract Hydroxyacetophenone Tocopheryl Acetate Propanediol Polyacrylate Crosspolymer-6 Polyacrylate-13 Polyisobutene Sclerotium Gum PEG-12 Dimethicone Lecithin Pullulan Butylene Glycol Aminomethyl Propanol Disodium EDTA Ethylhexylglycerin Water, Pentylene Glycol, Human Neonatal Fibroblast Conditioned Media, Glycereth-7 Triacetate, Shea Butter Ethyl Esters, Glycerin, Ethoxydiglycol, Lactococcus Ferment Lysate, Whey Protein, Chlorella Vulgaris Extract, Saccharide Isomerate, Dimer Tripeptide-43, Vitis Vinifera Flower Cell Extract, Pyrus Malus Fruit Extract, Hydroxyacetophenone, Tocopheryl Acetate, Propanediol, Xanthan Gum, Polyacrylate Crosspolymer-6, Polyacrylate-13, Polyisobutene, Sclerotium Gum, PEG-12 Dimethicone, Lecithin, Pullulan, Butylene Glycol, Sodium Citrate, Polysorbate 20, Aminomethyl Propanol, Disodium EDTA, Phenoxyethanol, Ethylhexylglycerin These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ethoxydiglycol (aka Diethylene Glycol Monoethyl Ether) is one of the cosmetic world's quiet problem solvers. In a formula, it is a solvent that dissolves tricky ingredients that don't want to mix in and helps spread ingredients evenly across your skin without leaving a greasy or sticky feeling This makes it great for hard-to-dissolve actives like vitamin C, benzoyl peroxide, and self-tanner DHA. It also has mild humectant and penetration enhancer abilities so it can help some actives absorb a little deeper. The penetration boost is backed by lab research: studies using human skin samples found it improved how well an active dissolves into the upper layer of skin rather than tearing down your skin barrier. Reviews of its mechanism also describe it interacting gently with the lipids and water in your outermost layer of skin. Just know this penetration-enhancing effect is not universal. It helps a lot in some formulas and did very little in others (so the benefit really depends on the specific product). Safety-wise, the evidence is reassuring. The Cosmetic Ingredient Review Expert Panel reviewed it and concluded it's safe for use in cosmetics and recognized it as non-irritating, non-sensitizing, and non-comedogenic in skincare. Typical leave-on skincare usage lands around 1-10%. The EU has sets caps of 2.6% in non-spray products, 10% in rinse-offs, 7% in oxidative hair dye, and 5% in non-oxidative hair dye. 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 s