Olay Deep Hydration Serum - Vitamin B3 + Hyaluronic Acid Versus Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free)

Olay Deep Hydration Serum - Vitamin B3 + Hyaluronic Acid Versus Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) Detailed comparison of Olay Deep Hydration Serum - Vitamin B3 + Hyaluronic Acid versus Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free). This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This anti-aging serum is formulated around Niacinamide and Panthenol to soften the look of wrinkles and refine skin texture. Water Niacinamide Glycerin Butylene Glycol Trehalose Sodium Hyaluronate Squalane Panthenol Hydroxyacetophenone Polysorbate 20 Disodium EDTA Acrylates/C10-30 Alkyl Acrylate Crosspolymer Carbomer Aminomethyl Propanol Phenoxyethanol Water, Niacinamide, Glycerin, Butylene Glycol, Trehalose, Sodium Hyaluronate, Squalane, Panthenol, Hydroxyacetophenone, Polysorbate 20, Disodium EDTA, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Aminomethyl Propanol, Phenoxyethanol Dimethicone Palmitoyl Pentapeptide-4 Tremella Fuciformis Sporocarp Extract C13-14 Isoparaffin Laureth-4 Laureth-7 Polyacrylamide Dimethicone Crosspolymer 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. 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. Hydroxyacetophenone is a small phenolic molecule that earns its place in a formulas as an antioxidant and preservative booster. As a phenol, it is able to neutralize free radicals to protect both the product and the skin from oxidative stress. Though it can't kill microbes on its own, it works as a good supporting agent when combined with other preservatives like Phenoxyethanol or 1,2-Hexanediol. This ingredient naturally occurs as piceol in Norwegian spruce needles (~0.4-1.1% dry weight and in cloudberries). Though the cosmetic-grade material is synthesized for purity and consistency. You'll usually see it used at low levels and suppliers recommend up to 1% added to a water phase. Safety testing was done at concentrations like 0.05% in SPF products and 0.5% in a Human Repeated Insult Patch Test. The safety evidence is assuring; this ingredient is safe for cosmetics in current use and also holds safety status as a food flavoring as well. An honest caveat: the "soothing" and "anti-inflammatory" claims come mostly from supplier marketing rather than published clinical trials. The Cosmet