Remedy For Daily Defense 15% Vitamin C Antioxidant Complex Brightening Serum Versus Paula's Choice C15 Super Booster

Remedy For Daily Defense 15% Vitamin C Antioxidant Complex Brightening Serum Versus Paula's Choice C15 Super Booster Detailed comparison of Remedy For Daily Defense 15% Vitamin C Antioxidant Complex Brightening Serum versus Paula's Choice C15 Super Booster. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and calm redness. This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles. Water 3-O-Ethyl Ascorbic Acid Glycerin Propanediol Squalane C12-15 Alkyl Lactate Butylene Glycol Aloe Barbadensis Leaf Juice Polyglyceryl-10 Laurate Hydrolyzed Hyaluronic Acid Allantoin Panthenol Escin Ruscus Aculeatus Root Extract Ammonium Glycyrrhizate Centella Asiatica Leaf Extract Hydrolyzed Yeast Protein Calendula Officinalis Flower Extract Tocopheryl Acetate Acetyl Zingerone Superoxide Dismutase Ergothioneine Plankton Extract Spirulina Platensis Extract Bifida Ferment Lysate Ferulic Acid Ectoin 1,2-Hexanediol Curcuma Longa Root Extract Glycyrrhiza Glabra Root Extract Camellia Sinensis Leaf Extract Hydroxyacetophenone Trisodium Ethylenediamine Disuccinate Sodium Citrate Citric Acid Sodium Hydroxide Sodium Benzoate Potassium Sorbate Leuconostoc/Radish Root Ferment Filtrate Phenoxyethanol Ethylhexylglycerin Water, 3-O-Ethyl Ascorbic Acid, Glycerin, Propanediol, Squalane, C12-15 Alkyl Lactate, Butylene Glycol, Aloe Barbadensis Leaf Juice, Polyglyceryl-10 Laurate, Hydrolyzed Hyaluronic Acid, Allantoin, Panthenol, Escin, Ruscus Aculeatus Root Extract, Ammonium Glycyrrhizate, Centella Asiatica Leaf Extract, Hydrolyzed Yeast Protein, Calendula Officinalis Flower Extract, Tocopheryl Acetate, Acetyl Zingerone, Superoxide Dismutase, Ergothioneine, Plankton Extract, Spirulina Platensis Extract, Bifida Ferment Lysate, Ferulic Acid, Ectoin, 1,2-Hexanediol, Curcuma Longa Root Extract, Glycyrrhiza Glabra Root Extract, Camellia Sinensis Leaf Extract, Hydroxyacetophenone, Trisodium Ethylenediamine Disuccinate, Sodium Citrate, Citric Acid, Sodium Hydroxide, Sodium Benzoate, Potassium Sorbate, Leuconostoc/Radish Root Ferment Filtrate, Phenoxyethanol, Ethylhexylglycerin Ascorbic Acid Dipropylene Glycol Ethoxydiglycol PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Bisabolol Sodium Phytate Decylene Glycol Tocopherol 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. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives Ferulic Acid is a plant based antioxidant that can be naturally found in the cell walls of grains like rice, oats, and corn. It has antioxidant and antimicrobial properties, and has the ability to boost the performance of other antioxidants as well. A well-known study found that adding Ferulic Acid to a solution of Vitamins C and E doubled the photoprotection of skin. This is why you'll often see it paired with Vitamin C or Vitamin E serums rather than sold on its own. A 2025 review of 18 human studies found that using Ferulic Acid (0.5-1%) daily for one to three months showed improvements in: As far as allergies go, Ferulic acid is generally well-tolerated but can cause an allergic reaction in very rare cases. It's also worth noting that Ferulic acid is often extracted from plant sources like rice bran or wheat bran, so be sure to path test if you have known grain allergies. Outside of skincare, researchers are also looking into Ferulic Acid for its potential benefits in areas like diabetes, Alzheimer's, and heart health. 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 Ethylh