Paula's Choice 10% Azelaic Acid Booster Versus Sunday Riley Good Genes Glycolic Acid Treatment

Paula's Choice 10% Azelaic Acid Booster Versus Sunday Riley Good Genes Glycolic Acid Treatment Detailed comparison of Paula's Choice 10% Azelaic Acid Booster versus Sunday Riley Good Genes Glycolic Acid Treatment. This calming treatment is formulated around Azelaic Acid and Salicylic Acid to calm redness and fade the look of dark spots. This smoothing treatment is formulated around Glycolic Acid and Squalane to refine skin texture and brighten dull-looking skin. Water Azelaic Acid C12-15 Alkyl Benzoate Caprylic/Capric Triglyceride Methyl Glucose Sesquistearate Glycerin Cetearyl Alcohol Glyceryl Stearate Dimethicone Salicylic Acid Adenosine Glycyrrhiza Glabra Root Extract Boerhavia Diffusa Root Extract Allantoin Bisabolol Cyclopentasiloxane Xanthan Gum Sclerotium Gum Propanediol Butylene Glycol Phenoxyethanol Water, Azelaic Acid, C12-15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Methyl Glucose Sesquistearate, Glycerin, Cetearyl Alcohol, Glyceryl Stearate, Dimethicone, Salicylic Acid, Adenosine, Glycyrrhiza Glabra Root Extract, Boerhavia Diffusa Root Extract, Allantoin, Bisabolol, Cyclopentasiloxane, Xanthan Gum, Sclerotium Gum, Propanediol, Butylene Glycol, Phenoxyethanol Glycolic Acid Caprylyl Caprylate/Caprate PPG-12 Squalane Potassium Lactate Bis-Stearyl Dimethicone Cymbopogon Schoenanthus Oil Potassium Hydroxide PPG-24-Glycereth-24 Sodium Phytate Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer PEG-100 Stearate Palmitic Acid Stearic Acid Opuntia Ficus-Indica Fruit Extract Ceteareth-20 Caprylyl Glycol Chlorphenesin Saccharomyces Cerevisiae Extract Sorbitan Isostearate Potassium Sorbate Sodium Benzoate Water, Dimethicone, Glycolic Acid, Caprylyl Caprylate/Caprate, PPG-12, Squalane, Propanediol, Cetearyl Alcohol, Potassium Lactate, Bis-Stearyl Dimethicone, Cymbopogon Schoenanthus Oil, Glycerin, Potassium Hydroxide, PPG-24-Glycereth-24, Sodium Phytate, Xanthan Gum, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Glyceryl Stearate, PEG-100 Stearate, Palmitic Acid, Stearic Acid, Phenoxyethanol, Opuntia Ficus-Indica Fruit Extract, Ceteareth-20, Caprylyl Glycol, Chlorphenesin, Saccharomyces Cerevisiae Extract, Sorbitan Isostearate, Potassium Sorbate, Sodium Benzoate These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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 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. Interestin