Neutrogena Hydro Boost Hyaluronic Acid Nourishing Cream Versus Olay Regenerist Collagen Peptide 24 Moisturizer (Fragrance Free)

Neutrogena Hydro Boost Hyaluronic Acid Nourishing Cream Versus Olay Regenerist Collagen Peptide 24 Moisturizer (Fragrance Free) Detailed comparison of Neutrogena Hydro Boost Hyaluronic Acid Nourishing Cream versus Olay Regenerist Collagen Peptide 24 Moisturizer (Fragrance Free). This barrier-repair moisturizer is formulated around Sodium Hyaluronate and Urea to strengthen the skin barrier and hydrate skin. This anti-aging moisturizer is formulated around Niacinamide and Panthenol to soften the look of wrinkles and refine skin texture. Water Glycerin Isopropyl Palmitate Cetyl Alcohol Cetearyl Olivate Sorbitan Olivate C10-30 Cholesterol/Lanosterol Esters Caprylyl Glycol Ethylhexylglycerin Betaine Dimethicone Palmitic Acid Stearic Acid Polyacrylate Crosspolymer-6 Pentylene Glycol Sodium PCA Fructose Sodium Hyaluronate Sodium Lactate Urea Sodium Hydroxide Citric Acid PCA 1,2-Hexanediol Maltose Ceramide NP Serine Alanine Sodium Chloride Trehalose Glycine Allantoin Glutamic Acid Lysine Hcl Arginine Threonine Tropolone Glucose Proline Water, Glycerin, Isopropyl Palmitate, Cetyl Alcohol, Cetearyl Olivate, Sorbitan Olivate, C10-30 Cholesterol/Lanosterol Esters, Caprylyl Glycol, Ethylhexylglycerin, Betaine, Dimethicone, Palmitic Acid, Stearic Acid, Polyacrylate Crosspolymer-6, Pentylene Glycol, Sodium PCA, Fructose, Sodium Hyaluronate, Sodium Lactate, Urea, Sodium Hydroxide, Citric Acid, PCA, 1,2-Hexanediol, Maltose, Ceramide NP, Serine, Alanine, Sodium Chloride, Trehalose, Glycine, Allantoin, Glutamic Acid, Lysine Hcl, Arginine, Threonine, Tropolone, Glucose, Proline Niacinamide Isohexadecane Isopropyl Isostearate Stearyl Alcohol Polyacrylamide Panthenol Palmitoyl Pentapeptide-4 Tremella Fuciformis Sporocarp Extract Tapioca Starch C13-14 Isoparaffin Dimethiconol Laureth-7 Cetearyl Alcohol Cetearyl Glucoside Behenyl Alcohol Disodium EDTA PEG-100 Stearate Titanium Dioxide Polymethylsilsesquioxane Phenoxyethanol Water, Glycerin, Niacinamide, Isohexadecane, Dimethicone, Isopropyl Isostearate, Stearyl Alcohol, Polyacrylamide, Panthenol, Palmitoyl Pentapeptide-4, Tremella Fuciformis Sporocarp Extract, Tapioca Starch, C13-14 Isoparaffin, Caprylyl Glycol, Dimethiconol, Laureth-7, Cetearyl Alcohol, Cetearyl Glucoside, Palmitic Acid, Stearic Acid, Cetyl Alcohol, Behenyl Alcohol, Disodium EDTA, PEG-100 Stearate, Titanium Dioxide, Polymethylsilsesquioxane, 1,2-Hexanediol, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. Its main roles are: Though it has "alcohol" in the name, it is not related to denatured alcohol or ethyl alcohol. The FDA allows products labeled "alcohol-free" to have fatty alcohols. This ingredient may not be fungal acne safe. It is a primary fatty alcohol with a chain length above 12 carbons. A study from 2019 show Malassezia can feed on fatty alcohols in this range, so it may trigger fungal acne in those prone to it. Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient. Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy. 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. Br