Paula's Choice Clear Regular Strength Anti-Redness Exfoliating Solution With 2% Salicylic Acid Versus La Roche-Posay Effaclar Duo (+) Dual Action Acne Treatment

Paula's Choice Clear Regular Strength Anti-Redness Exfoliating Solution With 2% Salicylic Acid Versus La Roche-Posay Effaclar Duo (+) Dual Action Acne Treatment Detailed comparison of Paula's Choice Clear Regular Strength Anti-Redness Exfoliating Solution With 2% Salicylic Acid versus La Roche-Posay Effaclar Duo (+) Dual Action Acne Treatment. This acne exfoliator is formulated around Salicylic Acid and Dipotassium Glycyrrhizate to clear breakouts and calm redness. This acne treatment is formulated around Benzoyl Peroxide and Capryloyl Salicylic Acid to clear breakouts and balance excess oil. Salicylic Acid 2% Water Dipropylene Glycol Pentylene Glycol Polysorbate 20 Butylene Glycol Glycerin Sodium Hyaluronate Dipotassium Glycyrrhizate Allantoin Panthenol PEG/PPG-17/6 Copolymer Methyl Gluceth-20 Glycereth-26 Bis-PEG-18 Methyl Ether Dimethyl Silane Sodium Hydroxide Tetrasodium EDTA Sodium Metabisulfite Salicylic Acid 2%, Water, Dipropylene Glycol, Pentylene Glycol, Polysorbate 20, Butylene Glycol, Glycerin, Sodium Hyaluronate, Dipotassium Glycyrrhizate, Allantoin, Panthenol, PEG/PPG-17/6 Copolymer, Methyl Gluceth-20, Glycereth-26, Bis-PEG-18 Methyl Ether Dimethyl Silane, Sodium Hydroxide, Tetrasodium EDTA, Sodium Metabisulfite Benzoyl Peroxide 5.5% Isostearyl Alcohol Silica Carbomer Capryloyl Salicylic Acid Potassium Hydroxide Tocopheryl Acetate Acrylates/C10-30 Alkyl Acrylate Crosspolymer Disodium EDTA Epilobium Angustifolium Flower/Leaf/Stem Extract Benzoyl Peroxide 5.5%, Water, Isostearyl Alcohol, Glycerin, Pentylene Glycol, Silica, Carbomer, Capryloyl Salicylic Acid, Potassium Hydroxide, Tocopheryl Acetate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Disodium EDTA, Epilobium Angustifolium Flower/Leaf/Stem Extract These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula: Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses. On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations. Typical use levels in a formula run about 1-5%. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product. So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation. You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!