Hyper Skin Hyper Clear Brightening Clearing Vitamin C Serum Versus Paula's Choice C15 Super Booster

Hyper Skin Hyper Clear Brightening Clearing Vitamin C Serum Versus Paula's Choice C15 Super Booster Detailed comparison of Hyper Skin Hyper Clear Brightening Clearing Vitamin C Serum versus Paula's Choice C15 Super Booster. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Kojic Acid 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 3-O-Ethyl Ascorbic Acid Kojic Acid Aloe Barbadensis Leaf Juice Arctostaphylos Uva-Ursi Leaf Extract Biotin Camellia Oleifera Leaf Extract Citric Acid Corallina Officinalis Extract Curcuma Longa Root Extract Ethylhexylglycerin Glycerin Glycyrrhiza Glabra Root Extract Hyaluronic Acid Hydroxyethylcellulose Lactobacillus/Papaya Fruit Ferment Extract Lecithin Maltodextrin Melia Azadirachta Flower Extract Melia Azadirachta Leaf Extract Ocimum Basilicum Extract Ocimum Sanctum Leaf Extract Phenoxyethanol Phyllanthus Emblica Fruit Extract Potassium Sorbate Pullulan Pyrus Malus Fruit Extract Saccharomyces/Xylinum/Black Tea Ferment Salicylic Acid Sclerotium Gum Silica Sodium Benzoate Sodium Citrate Tetrasodium EDTA Tocopherol Xanthan Gum Water, 3-O-Ethyl Ascorbic Acid, Kojic Acid, Aloe Barbadensis Leaf Juice, Arctostaphylos Uva-Ursi Leaf Extract, Biotin, Camellia Oleifera Leaf Extract, Citric Acid, Corallina Officinalis Extract, Curcuma Longa Root Extract, Ethylhexylglycerin, Glycerin, Glycyrrhiza Glabra Root Extract, Hyaluronic Acid, Hydroxyethylcellulose, Lactobacillus/Papaya Fruit Ferment Extract, Lecithin, Maltodextrin, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Ocimum Basilicum Extract, Ocimum Sanctum Leaf Extract, Phenoxyethanol, Phyllanthus Emblica Fruit Extract, Potassium Sorbate, Pullulan, Pyrus Malus Fruit Extract, Saccharomyces/Xylinum/Black Tea Ferment, Salicylic Acid, Sclerotium Gum, Silica, Sodium Benzoate, Sodium Citrate, Tetrasodium EDTA, Tocopherol, Xanthan Gum Ascorbic Acid Dipropylene Glycol Propanediol Ethoxydiglycol Sodium Hydroxide PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Bisabolol Ferulic Acid Sodium Phytate 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. 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. Tocopherol is a fat-soluble antioxidant known as Vitamin E. You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells. Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes. It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-bin