La Roche-Posay Hydraphase Intense Light Rehydrating Face Moisturizer Versus Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free)

La Roche-Posay Hydraphase Intense Light Rehydrating Face Moisturizer Versus Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) Detailed comparison of La Roche-Posay Hydraphase Intense Light Rehydrating Face Moisturizer versus Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free). This oil-control moisturizer is formulated around Zinc Gluconate and Hydrolyzed Hyaluronic Acid to balance excess oil and hydrate skin. This anti-aging serum is formulated around Niacinamide and Panthenol to soften the look of wrinkles and refine skin texture. Water Hydrogenated Polyisobutene Dimethicone Glycerin Alcohol Denat. Polyethylene PEG-20 Stearate PEG-100 Stearate Carbomer Zinc Gluconate Glyceryl Stearate Isohexadecane Sodium Hydroxide Disodium EDTA Copper Sulfate Hydrolyzed Hyaluronic Acid Xanthan Gum Pentylene Glycol Polysorbate 80 Acrylamide/Sodium Acryloyldimethyltaurate Copolymer Cetyl Alcohol Caprylyl Glycol Parfum Water, Hydrogenated Polyisobutene, Dimethicone, Glycerin, Alcohol Denat., Polyethylene, PEG-20 Stearate, PEG-100 Stearate, Carbomer, Zinc Gluconate, Glyceryl Stearate, Isohexadecane, Sodium Hydroxide, Disodium EDTA, Copper Sulfate, Hydrolyzed Hyaluronic Acid, Xanthan Gum, Pentylene Glycol, Polysorbate 80, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Cetyl Alcohol, Caprylyl Glycol, Parfum Niacinamide Panthenol Palmitoyl Pentapeptide-4 Tremella Fuciformis Sporocarp Extract Hydroxyacetophenone C13-14 Isoparaffin Laureth-4 Polysorbate 20 Laureth-7 Polyacrylamide Dimethicone Crosspolymer Phenoxyethanol Water, Dimethicone, Niacinamide, Glycerin, Panthenol, Palmitoyl Pentapeptide-4, Tremella Fuciformis Sporocarp Extract, Hydroxyacetophenone, C13-14 Isoparaffin, Laureth-4, Polysorbate 20, Laureth-7, Disodium EDTA, Polyacrylamide, Dimethicone Crosspolymer, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air. This ingredient mainly works behind the scenes and helps with: On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it. One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin). Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption. You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%. 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. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product. So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation. You