Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum Versus 111Skin Vitamin C Brightening Booster

Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum Versus 111Skin Vitamin C Brightening Booster Detailed comparison of Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum versus 111Skin Vitamin C Brightening Booster. This anti-aging serum is formulated around Resveratrol and Niacinamide to soften the look of wrinkles and calm redness. This brightening serum is formulated around Sodium Ascorbyl Phosphate and Glycyrrhiza Glabra Root Extract to brighten dull-looking skin and fade the look of dark spots. Water Cyclopentasiloxane Butylene Glycol Dimethicone Glycerin Polysorbate 20 Polysilicone-11 Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone Hyaluronic Acid Resveratrol Niacinamide Quercetin Adenosine Tetrahexyldecyl Ascorbate Tocopherol Phospholipids Ubiquinone Epigallocatechin Gallate Sea Whip Extract Bisabolol Beta-Glucan Phytic Acid Xanthan Gum Acrylates/C10-30 Alkyl Acrylate Crosspolymer Sodium Hydroxide Disodium EDTA Ethylhexylglycerin Phenoxyethanol Water, Cyclopentasiloxane, Butylene Glycol, Dimethicone, Glycerin, Polysorbate 20, Polysilicone-11, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Hyaluronic Acid, Resveratrol, Niacinamide, Quercetin, Adenosine, Tetrahexyldecyl Ascorbate, Tocopherol, Phospholipids, Ubiquinone, Epigallocatechin Gallate, Sea Whip Extract, Bisabolol, Beta-Glucan, Phytic Acid, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Hydroxide, Disodium EDTA, Ethylhexylglycerin, Phenoxyethanol Sodium Ascorbyl Phosphate Citric Acid Cellulose Gum Glycyrrhiza Glabra Root Extract Prunus Armeniaca Kernel Oil Sodium Benzoate Glutathione Dipotassium Glycyrrhizate Acetyl Cysteine Parfum Water, Glycerin, Sodium Ascorbyl Phosphate, Citric Acid, Cellulose Gum, Glycyrrhiza Glabra Root Extract, Phenoxyethanol, Prunus Armeniaca Kernel Oil, Polysorbate 20, Sodium Benzoate, Glutathione, Ethylhexylglycerin, Dipotassium Glycyrrhizate, Acetyl Cysteine, Parfum These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that: The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure. Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations. 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 to 1%, including for children of all ages. Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon. Polysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep