Paula's Choice Clinical Niacinamide 20% Treatment Versus Paula's Choice 10% Azelaic Acid Booster

Paula's Choice Clinical Niacinamide 20% Treatment Versus Paula's Choice 10% Azelaic Acid Booster Detailed comparison of Paula's Choice Clinical Niacinamide 20% Treatment versus Paula's Choice 10% Azelaic Acid Booster. This pore-care treatment is formulated around Niacinamide and Acetyl Glucosamine to refine the look of pores and refine skin texture. This calming treatment is formulated around Azelaic Acid and Salicylic Acid to calm redness and fade the look of dark spots. No concerns Water Niacinamide 20% Pentylene Glycol Butylene Glycol Glycerin Acetyl Glucosamine Ascorbyl Glucoside Glycyrrhiza Glabra Root Extract Spiraea Ulmaria Extract Portulaca Oleracea Extract Camellia Japonica Flower Extract Epigallocatechin Gallate Boerhavia Diffusa Root Extract Camellia Sinensis Leaf Extract Allantoin Lecithin Pullulan Panthenol Silica Xanthan Gum Sclerotium Gum Propanediol Sodium Phytate Phenoxyethanol Ethylhexylglycerin Water, Niacinamide 20%, Pentylene Glycol, Butylene Glycol, Glycerin, Acetyl Glucosamine, Ascorbyl Glucoside, Glycyrrhiza Glabra Root Extract, Spiraea Ulmaria Extract, Portulaca Oleracea Extract, Camellia Japonica Flower Extract, Epigallocatechin Gallate, Boerhavia Diffusa Root Extract, Camellia Sinensis Leaf Extract, Allantoin, Lecithin, Pullulan, Panthenol, Silica, Xanthan Gum, Sclerotium Gum, Propanediol, Sodium Phytate, Phenoxyethanol, Ethylhexylglycerin Azelaic Acid C12-15 Alkyl Benzoate Caprylic/Capric Triglyceride Methyl Glucose Sesquistearate Cetearyl Alcohol Glyceryl Stearate Dimethicone Salicylic Acid Adenosine Bisabolol Cyclopentasiloxane 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 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics. Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity. Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation. It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh. Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated. This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%. Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating. Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism. Boerhavia Diffusa Root Extract comes from the Boerhavia Diffusa tree, or more commonly known as punarnava, red spiderling, spreading hogweed, or tarvine. This tree is native to India and commonly used in ayurvedic medicine. Studies show this extract helps soothe and hydrate skin. This root contains many amino acids that help moisturize skin, such as arginine and glycine. Boerhavia Diffusa Root Extract also contains antioxidants, antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. 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 hu