ISANA Akut Pflege Serum [5% UREA] Versus Biossance Squalane + 10% Lactic Acid Resurfacing Night Serum

ISANA Akut Pflege Serum [5% UREA] Versus Biossance Squalane + 10% Lactic Acid Resurfacing Night Serum Detailed comparison of ISANA Akut Pflege Serum [5% UREA] versus Biossance Squalane + 10% Lactic Acid Resurfacing Night Serum. This hydrating serum is formulated around Urea and Panthenol to hydrate skin and strengthen the skin barrier. This smoothing serum is formulated around Lactic Acid and Squalane to refine skin texture and brighten dull-looking skin. Water Urea Ethylhexyl Stearate Glycerin Cetearyl Alcohol Dicaprylyl Ether Butyrospermum Parkii Butter Pentaerythrityl Distearate Panthenol Allantoin Solanum Lycopersicum Fruit Extract Simmondsia Chinensis Seed Oil Squalane Sodium Stearoyl Glutamate Carbomer Phenoxyethanol Benzyl Alcohol Sodium Lactate Lactic Acid Sodium Hydroxide Citric Acid Water, Urea, Ethylhexyl Stearate, Glycerin, Cetearyl Alcohol, Dicaprylyl Ether, Butyrospermum Parkii Butter, Pentaerythrityl Distearate, Panthenol, Allantoin, Solanum Lycopersicum Fruit Extract, Simmondsia Chinensis Seed Oil, Squalane, Sodium Stearoyl Glutamate, Carbomer, Phenoxyethanol, Benzyl Alcohol, Sodium Lactate, Lactic Acid, Sodium Hydroxide, Citric Acid Caprylic/Capric Triglyceride Cetearyl Olivate Propanediol Sorbitan Olivate Lespedeza Capitata Leaf/Stem Extract Polyacrylate Crosspolymer-6 Acacia Senegal Gum Sodium Gluconate Xanthan Gum Ethylhexylglycerin Lavandula Angustifolia Oil Linalool Water, Caprylic/Capric Triglyceride, Lactic Acid, Squalane, Glycerin, Sodium Hydroxide, Cetearyl Olivate, Propanediol, Sorbitan Olivate, Cetearyl Alcohol, Lespedeza Capitata Leaf/Stem Extract, Polyacrylate Crosspolymer-6, Acacia Senegal Gum, Sodium Gluconate, Xanthan Gum, Phenoxyethanol, Ethylhexylglycerin, Lavandula Angustifolia Oil, Linalool Be the first to review 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. 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. Lactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective. Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin. Because