Paula's Choice 10% Azelaic Acid Booster Versus Caudalie Vinoperfect Dark Spot Correcting Glycolic Night Cream

Paula's Choice 10% Azelaic Acid Booster Versus Caudalie Vinoperfect Dark Spot Correcting Glycolic Night Cream Detailed comparison of Paula's Choice 10% Azelaic Acid Booster versus Caudalie Vinoperfect Dark Spot Correcting Glycolic Night Cream. This calming treatment is formulated around Azelaic Acid and Salicylic Acid to calm redness and fade the look of dark spots. This brightening night moisturizer is formulated around Palmitoyl Grapevine Shoot Extract and Glycolic Acid to fade the look of dark spots and refine skin texture. 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 Squalane C9-12 Alkane Vitis Vinifera Seed Oil Arachidyl Alcohol 1,2-Hexanediol Algin Hydrogenated Castor Oil/Sebacic Acid Copolymer Palmitoyl Grapevine Shoot Extract Glycolic Acid Cetearyl Glucoside Behenyl Alcohol Sodium Hydroxide Disteardimonium Hectorite Calcium Citrate Arachidyl Glucoside Sorbitan Olivate Triethyl Citrate Arginine Sodium Dehydroacetate Sodium Hyaluronate Helianthus Annuus Seed Oil Sodium Phytate Tocopherol Papain Caprylyl Glycol Carbomer Parfum Water, Squalane, Glycerin, C9-12 Alkane, Vitis Vinifera Seed Oil, Arachidyl Alcohol, 1,2-Hexanediol, Algin, Hydrogenated Castor Oil/Sebacic Acid Copolymer, Palmitoyl Grapevine Shoot Extract, Glycolic Acid, Cetearyl Glucoside, Behenyl Alcohol, Bisabolol, Xanthan Gum, Sodium Hydroxide, Disteardimonium Hectorite, Calcium Citrate, Arachidyl Glucoside, Sorbitan Olivate, Triethyl Citrate, Arginine, Sodium Dehydroacetate, Cetearyl Alcohol, Sodium Hyaluronate, Helianthus Annuus Seed Oil, Sodium Phytate, Tocopherol, Papain, Caprylyl Glycol, Carbomer, Parfum These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Bisabolol is a gentle skin conditioner, antioxidant, and soothing ingredient. It's primary claim to fame is soothing and research shows topically applied bisabolol can quiet the chemical messengers that cause your skin to become inflamed, helping to sooth any irritation. A clinical study found that applying 0.5% bisabolol daily for 8 weeks produced an average 9% decrease in skin pigmentation. Researchers found it can also suppress the process that leads to excess melanin production in skin. In vitro studies found that bisabolol combined with propylene glycol significantly increased skin permeability by increasing lipid fluidity in the stratum corneum. You'll likely see use concentrations quite low, usually 0.1-0.2%. Overall, this is a well-tolerated ingredient that works well in formulas designed for sensitive, reactive, or post-procedure skin. 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. 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 essentia