Paula's Choice 10% Azelaic Acid Booster Versus Theramid Azid 15% Azelaic Acid Treatment

Paula's Choice 10% Azelaic Acid Booster Versus Theramid Azid 15% Azelaic Acid Treatment Detailed comparison of Paula's Choice 10% Azelaic Acid Booster versus Theramid Azid 15% Azelaic Acid Treatment. This calming treatment is formulated around Azelaic Acid and Salicylic Acid to calm redness and fade the look of dark spots. This calming serum is formulated around Azelaic Acid and Avena Sativa Kernel Flour to calm redness and clear breakouts. 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 Azelaic Acid 15% Glycereth-26 Avena Sativa Kernel Flour Carnosine Acetyl Tetrapeptide-2 Ceramide NP Ceramide EOP Ceramide Ns Ceramide As Ceramide AP Gallyl Glucoside Propyl Gallate Epigallocatechin Gallatyl Glucoside Daucus Carota Sativa Root Cell Culture Lysate Gossypium Herbaceum Callus Culture Sphingomonas Ferment Extract Ethylhexylglycerin Hydrogenated Lecithin Sucrose Distearate Dipropylene Glycol Dehydroacetic Acid Caprylyl Glycol Triethanolamine Benzyl Alcohol Citric Acid Water, Azelaic Acid 15%, Glycerin, Propanediol, Glycereth-26, Avena Sativa Kernel Flour, Carnosine, Acetyl Tetrapeptide-2, Ceramide NP, Ceramide EOP, Ceramide Ns, Ceramide As, Ceramide AP, Gallyl Glucoside, Propyl Gallate, Epigallocatechin Gallatyl Glucoside, Daucus Carota Sativa Root Cell Culture Lysate, Gossypium Herbaceum Callus Culture, Sphingomonas Ferment Extract, Ethylhexylglycerin, Hydrogenated Lecithin, Sucrose Distearate, Glyceryl Stearate, Dipropylene Glycol, Dehydroacetic Acid, Caprylyl Glycol, Phenoxyethanol, Triethanolamine, Benzyl Alcohol, Citric Acid These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Azelaic acid is a multitasker ingredient that helps treat acne, pigmentation, and irritation. It is a great option for sensitive skin. What makes it special? OTC Azelaic acid is usually available in concentrations from 10-15% and anything over requires a prescription. Here's what each tier does best: Unlike other acids, azelaic acid will not make your skin more photosensitive/sun sensitive. Though this ingredient is naturally occurring in grains like wheat, rye, and barley, it is usually synthetically created for cosmetics to ensure stability and effectiveness. 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. Glyceryl Stearate is made by reacting glycerin with stearic acid (typically sourced from plant oils like palm or coconut). It's an emulsifier, emollient, and mild occlusive. Emulsifiers help ingredients like oil and water stay mixed so your formula stays nicely blended and uniform in texture. This ingredient is typically used in concentrations between 1-10%. Studies have found it to be non-sensitizing, non-phototoxic, and non-photoallergenic. A close cousin of this ingredient is Glyceryl Stearate SE ("self-emulsifying"). This just has a small amount of sodium or potassium stearate added so it can emulsify without a co-emulsifier. Since this ingredient is an ester of a C18 fatty acid, it may not be fungal acne safe. The Malassezia yeast can potentially metabolize within the C11-C24 range. Fun fact: The human body also creates Glyceryl Stearate naturally. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive. Another perk of this ingredient is tha