COSRX Real Fit Retinol Serum Versus PCA Skin Intensive Brightening Treatment 0.5 Pure Retinol Night

COSRX Real Fit Retinol Serum Versus PCA Skin Intensive Brightening Treatment 0.5 Pure Retinol Night Detailed comparison of COSRX Real Fit Retinol Serum versus PCA Skin Intensive Brightening Treatment 0.5 Pure Retinol Night. This anti-aging serum is formulated around Calendula Officinalis Extract and Retinyl Palmitate to soften the look of wrinkles and fade the look of dark spots. This brightening treatment is formulated around Niacinamide and Retinol to fade the look of dark spots and refine skin texture. Calendula Officinalis Extract Butylene Glycol Glycerin Helianthus Annuus Seed Oil 1,2-Hexanediol Polysorbate 60 Betaine Dimethicone Cetearyl Alcohol Retinyl Palmitate Cetearyl Olivate Panthenol Arachis Hypogaea Oil Sorbitan Olivate Allantoin Tocopheryl Acetate Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Hydroxyethylcellulose Xanthan Gum Juniperus Mexicana Oil Ethylhexylglycerin Adenosine Tocopherol Calendula Officinalis Extract, Butylene Glycol, Glycerin, Helianthus Annuus Seed Oil, 1,2-Hexanediol, Polysorbate 60, Betaine, Dimethicone, Cetearyl Alcohol, Retinyl Palmitate, Cetearyl Olivate, Panthenol, Arachis Hypogaea Oil, Sorbitan Olivate, Allantoin, Tocopheryl Acetate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyethylcellulose, Xanthan Gum, Juniperus Mexicana Oil, Ethylhexylglycerin, Adenosine, Tocopherol Water Isododecane Cyclopentasiloxane Niacinamide Propanediol PEG-12 Glyceryl Dimyristate Tapioca Starch Polymethylsilsesquioxane Hydroxyphenoxy Propionic Acid Pentylene Glycol Polysilicone-11 Glyceryl Stearate PEG-100 Stearate Hexylresorcinol Coco-Caprylate/Caprate Resveratrol Phenoxyethanol Retinol Polysorbate 20 Sodium Polyacrylate Caprylyl Glycol Ethylhexyl Stearate Ammonium Acryloyldimethyltaurate/Vp Copolymer Chlorphenesin Sodium Citrate Trideceth-6 Disodium EDTA Decyl Glucoside Aminomethyl Propanol Water, Isododecane, Cyclopentasiloxane, Niacinamide, Propanediol, Dimethicone, PEG-12 Glyceryl Dimyristate, Glycerin, Tapioca Starch Polymethylsilsesquioxane, Cetearyl Alcohol, Hydroxyphenoxy Propionic Acid, Pentylene Glycol, Polysilicone-11, Glyceryl Stearate, PEG-100 Stearate, Hexylresorcinol, Coco-Caprylate/Caprate, Resveratrol, Phenoxyethanol, Retinol, Polysorbate 20, Butylene Glycol, Sodium Polyacrylate, Caprylyl Glycol, Ethylhexyl Stearate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Xanthan Gum, Chlorphenesin, Sodium Citrate, Tocopheryl Acetate, Trideceth-6, Disodium EDTA, Decyl Glucoside, Aminomethyl Propanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier. Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient. It plays several roles in a formula: Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products. Multiple assessments have found it to be non-irritating and non-sensitizing to most people. However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers. Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy. Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans. Remember comedogenic ratings are unable to assess the entire formula of a product or how it will react on your skin. Just be sure to patch test if you are unsure about certain ingredients. This ingredient is not fungal acne safe. Cetearyl alcohol is a fatty alcohol with chain lengths that fall within the range that Malassezia can metabolize. A 2019 study has also observed Malassezia growth in the presence of this ingredient, confirming it to be not-fungal acne safe. 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