Sesderma Azelac RU Liposomal Serum Versus Paula's Choice 10% Azelaic Acid Booster

Sesderma Azelac RU Liposomal Serum Versus Paula's Choice 10% Azelaic Acid Booster Detailed comparison of Sesderma Azelac RU Liposomal Serum versus Paula's Choice 10% Azelaic Acid Booster. This brightening serum is formulated around 4-Butylresorcinol and Retinol to fade the look of dark spots and brighten dull-looking skin. This calming treatment is formulated around Azelaic Acid and Salicylic Acid to calm redness and fade the look of dark spots. Water Propylene Glycol Lecithin Alcohol Polymethyl Methacrylate PEG-40 Hydrogenated Castor Oil 4-Butylresorcinol Ascorbyl Glucoside Retinol Azelaic Acid Niacin Undecylenoyl Phenylalanine Glycyrrhetinic Acid Morus Alba Root Extract Diacetyl Boldine PEG/PPG-20/6 Dimethicone Sodium Cholate Polysorbate 20 Xanthan Gum Carbomer Triethanolamine Tocopheryl Acetate BHT Sodium Hydroxide Caprylic/Capric Triglyceride Sodium Chloride Hydroxypropyl Cyclodextrin BHA Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Triisopropanolamine Hydrochloric Acid Phenoxyethanol Ethylhexylglycerin Parfum Citronellyl Methylcrotonate Citral Coumarin Eugenol Limonene Isoeugenol Water, Propylene Glycol, Lecithin, Alcohol, Polymethyl Methacrylate, PEG-40 Hydrogenated Castor Oil, 4-Butylresorcinol, Ascorbyl Glucoside, Retinol, Azelaic Acid, Niacin, Undecylenoyl Phenylalanine, Glycyrrhetinic Acid, Morus Alba Root Extract, Diacetyl Boldine, PEG/PPG-20/6 Dimethicone, Sodium Cholate, Polysorbate 20, Xanthan Gum, Carbomer, Triethanolamine, Tocopheryl Acetate, BHT, Sodium Hydroxide, Caprylic/Capric Triglyceride, Sodium Chloride, Hydroxypropyl Cyclodextrin, BHA, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Triisopropanolamine, Hydrochloric Acid, Phenoxyethanol, Ethylhexylglycerin, Parfum, Citronellyl Methylcrotonate, Citral, Coumarin, Eugenol, Limonene, Isoeugenol C12-15 Alkyl Benzoate Methyl Glucose Sesquistearate Glycerin Cetearyl Alcohol Glyceryl Stearate Dimethicone Salicylic Acid Adenosine Glycyrrhiza Glabra Root Extract Boerhavia Diffusa Root Extract Allantoin Bisabolol Cyclopentasiloxane Sclerotium Gum Propanediol Butylene Glycol 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. 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. Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss. Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid. In practice, that translates to a long shelf life and a consistently elegant skin feel. While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns. Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source. This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out. This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%. 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 that it stays functional across a wide pH range (3-10). You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own. Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU. Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scien