SkinBetter Science Even Tone Correcting Serum Versus Paula's Choice C15 Super Booster

SkinBetter Science Even Tone Correcting Serum Versus Paula's Choice C15 Super Booster Detailed comparison of SkinBetter Science Even Tone Correcting Serum versus Paula's Choice C15 Super Booster. This brightening serum is formulated around Alpha-Arbutin and Hexylresorcinol to fade the look of dark spots and brighten dull-looking skin. This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles. Water C13-15 Alkane Propanediol Caprylic/Capric Triglyceride Glyceryl Stearate Citrate Linoleic Acid Glycerin Dimethicone Alpha-Arbutin Arginine PCA Hydrolyzed Sodium Hyaluronate Bisabolol Cetearyl Alcohol Acetyl Glycyl Beta-Alanine Hexylresorcinol Terminalia Ferdinandiana Fruit Extract Artemisia Capillaris Flower Extract Diglucosyl Gallic Acid Pancratium Maritimum Extract Ceramide Ng Linolenic Acid Beta-Glucan Algin Tocopherol Butylene Glycol Ethylhexylglycerin Xanthan Gum Carbomer Sodium Phytate Sodium Hydroxide Phenoxyethanol Benzoic Acid Sorbic Acid Citric Acid Water, C13-15 Alkane, Propanediol, Caprylic/Capric Triglyceride, Glyceryl Stearate Citrate, Linoleic Acid, Glycerin, Dimethicone, Alpha-Arbutin, Arginine PCA, Hydrolyzed Sodium Hyaluronate, Bisabolol, Cetearyl Alcohol, Acetyl Glycyl Beta-Alanine, Hexylresorcinol, Terminalia Ferdinandiana Fruit Extract, Artemisia Capillaris Flower Extract, Diglucosyl Gallic Acid, Pancratium Maritimum Extract, Ceramide Ng, Linolenic Acid, Beta-Glucan, Algin, Tocopherol, Butylene Glycol, Ethylhexylglycerin, Xanthan Gum, Carbomer, Sodium Phytate, Sodium Hydroxide, Phenoxyethanol, Benzoic Acid, Sorbic Acid, Citric Acid Ascorbic Acid Dipropylene Glycol Ethoxydiglycol PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Ferulic Acid Decylene Glycol 1,2-Hexanediol Sphingomonas Ferment Extract Water, Ascorbic Acid, Dipropylene Glycol, Propanediol, Glycerin, Ethoxydiglycol, Sodium Hydroxide, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Bisabolol, Ferulic Acid, Sodium Phytate, Decylene Glycol, Tocopherol, 1,2-Hexanediol, Sphingomonas Ferment Extract, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Bisabolol is a gentle skin conditioner, antioxidant, and soothing ingredient. It's primary claim to fame is soothing and research shows topically applied bisabolol can quiet the chemical messengers that cause your skin to become inflamed, helping to sooth any irritation. A clinical study found that applying 0.5% bisabolol daily for 8 weeks produced an average 9% decrease in skin pigmentation. Researchers found it can also suppress the process that leads to excess melanin production in skin. In vitro studies found that bisabolol combined with propylene glycol significantly increased skin permeability by increasing lipid fluidity in the stratum corneum. You'll likely see use concentrations quite low, usually 0.1-0.2%. Overall, this is a well-tolerated ingredient that works well in formulas designed for sensitive, reactive, or post-procedure skin. 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. 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 Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up t