Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant Versus Kiehl's Cucumber Herbal Alcohol-Free Toner

Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant Versus Kiehl's Cucumber Herbal Alcohol-Free Toner Detailed comparison of Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant US versus Kiehl's Cucumber Herbal Alcohol-Free Toner. This smoothing exfoliator is formulated around Salicylic Acid to refine skin texture and refine the look of pores. This calming toner is formulated around Allantoin and Cucumis Sativus Fruit Extract to calm redness and hydrate skin. No key ingredients Water Methylpropanediol Butylene Glycol Salicylic Acid Polysorbate 20 Camellia Oleifera Leaf Sodium Hydroxide Tetrasodium EDTA Water, Methylpropanediol, Butylene Glycol, Salicylic Acid, Polysorbate 20, Camellia Oleifera Leaf, Sodium Hydroxide, Tetrasodium EDTA Propanediol Propylene Glycol Phenoxyethanol Sodium PCA Sodium Benzoate Allantoin Chamomilla Recutita Flower Extract Chamomilla Recutita Extract Glucose Cucumis Sativus Fruit Extract Aloe Barbadensis Leaf Juice Powder Camphor Urtica Dioica Extract Equisetum Arvense Extract Betula Alba Leaf Extract CI 19140 Potassium Sorbate CI 14700 CI 42090 Citric Acid Water, Propanediol, Propylene Glycol, Phenoxyethanol, Sodium PCA, Sodium Benzoate, Allantoin, Chamomilla Recutita Flower Extract, Chamomilla Recutita Extract, Glucose, Cucumis Sativus Fruit Extract, Aloe Barbadensis Leaf Juice Powder, Camphor, Urtica Dioica Extract, Equisetum Arvense Extract, Betula Alba Leaf Extract, CI 19140, Potassium Sorbate, CI 14700, CI 42090, Sodium Hydroxide, Citric Acid These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective. In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline. Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated. "Alkaline" refers to a high pH level. A low pH level would be considered acidic. 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!