Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) Versus SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid

Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) Versus SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid Detailed comparison of Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) versus SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid. This anti-aging serum is formulated around Tripeptide-29 and Tripeptide-1 to soften the look of wrinkles. This anti-aging serum is formulated around Ascorbic Acid and Tocopherol to soften the look of wrinkles and brighten dull-looking skin. Water Glycerin Tripeptide-29 Bis(Tripeptide-1) Copper Acetate Tripeptide-1 Myristoyl Nonapeptide-3 Trifluoroacetyl Tripeptide-2 Acetyl Tetrapeptide-2 Sodium Hyaluronate Crosspolymer Glycogen Propanediol Pentylene Glycol Dextran Dimethyl Isosorbide Ethoxydiglycol Isoceteth-20 Leuconostoc/Radish Root Ferment Filtrate Caprylyl Glycol Ethylhexylglycerin Phenoxyethanol Chlorphenesin Water, Glycerin, Tripeptide-29, Bis(Tripeptide-1) Copper Acetate, Tripeptide-1, Myristoyl Nonapeptide-3, Trifluoroacetyl Tripeptide-2, Acetyl Tetrapeptide-2, Sodium Hyaluronate Crosspolymer, Glycogen, Propanediol, Pentylene Glycol, Dextran, Dimethyl Isosorbide, Ethoxydiglycol, Isoceteth-20, Leuconostoc/Radish Root Ferment Filtrate, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin Ascorbic Acid Propylene Glycol Laureth-23 Tocopherol Triethanolamine Ferulic Acid Panthenol Sodium Hyaluronate Water, Ethoxydiglycol, Ascorbic Acid, Glycerin, Propylene Glycol, Laureth-23, Phenoxyethanol, Tocopherol, Triethanolamine, Ferulic Acid, Panthenol, Sodium Hyaluronate 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