Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Versus Tower 28 Beauty SunnyDays Tinted SPF 30

Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Versus Tower 28 Beauty SunnyDays Tinted SPF 30 Detailed comparison of Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 versus Tower 28 Beauty SunnyDays Tinted SPF 30 05 Fairfax. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. Butyl Methoxydibenzoylmethane 2% Ethylhexyl Methoxycinnamate 7.5% Ethylhexyl Salicylate 5% Octocrylene 2% Water Glycerin Silica Dimethicone Tocopherol Chamomilla Recutita Flower Extract Vitis Vinifera Seed Extract Camellia Sinensis Leaf Extract Camellia Oleifera Leaf Extract Peucedanum Graveolens Extract Sambucus Nigra Fruit Extract Avena Sativa Bran Extract Punica Granatum Extract Lycium Barbarum Fruit Extract Hydrogenated Lecithin Titanium Dioxide Dimethicone/Vinyl Dimethicone Crosspolymer Diethylhexyl Syringylidenemalonate Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Xanthan Gum Sodium Carbomer Benzyl Alcohol Sodium Benzoate Potassium Sorbate Phenoxyethanol Butyl Methoxydibenzoylmethane 2%, Ethylhexyl Methoxycinnamate 7.5%, Ethylhexyl Salicylate 5%, Octocrylene 2%, Water, Glycerin, Silica, Dimethicone, Tocopherol, Chamomilla Recutita Flower Extract, Vitis Vinifera Seed Extract, Camellia Sinensis Leaf Extract, Camellia Oleifera Leaf Extract, Peucedanum Graveolens Extract, Sambucus Nigra Fruit Extract, Avena Sativa Bran Extract, Punica Granatum Extract, Lycium Barbarum Fruit Extract, Hydrogenated Lecithin, Titanium Dioxide, Dimethicone/Vinyl Dimethicone Crosspolymer, Diethylhexyl Syringylidenemalonate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xanthan Gum, Sodium Carbomer, Benzyl Alcohol, Sodium Benzoate, Potassium Sorbate, Phenoxyethanol Zinc Oxide 12.6% Isononyl Isononanoate C9-12 Alkane Butyloctyl Salicylate Polyglyceryl-6 Polyricinoleate Caprylic/Capric Triglyceride Ethylhexyl Methoxycrylene Trimethylsiloxysilicate Mica Polyglyceryl-2 Isostearate Sodium Chloride Disteardimonium Hectorite Polyglyceryl-3 Polyricinoleate Polyhydroxystearic Acid Coco-Caprylate/Caprate Isostearic Acid Lecithin Polyglyceryl-6 Polyhydroxystearate Jojoba Esters Ethylhexylglycerin Sodium Phytate Aloe Barbadensis Leaf Water Centella Asiatica Extract Opuntia Tuna Fruit Salvia Officinalis Extract Iron Oxides CI 77891 Zinc Oxide 12.6%, Water, Isononyl Isononanoate, C9-12 Alkane, Butyloctyl Salicylate, Polyglyceryl-6 Polyricinoleate, Caprylic/Capric Triglyceride, Glycerin, Ethylhexyl Methoxycrylene, Trimethylsiloxysilicate, Mica, Polyglyceryl-2 Isostearate, Sodium Chloride, Phenoxyethanol, Disteardimonium Hectorite, Polyglyceryl-3 Polyricinoleate, Polyhydroxystearic Acid, Coco-Caprylate/Caprate, Isostearic Acid, Lecithin, Polyglyceryl-6 Polyhydroxystearate, Jojoba Esters, Ethylhexylglycerin, Sodium Phytate, Aloe Barbadensis Leaf Water, Centella Asiatica Extract, Opuntia Tuna Fruit, Salvia Officinalis Extract, Iron Oxides, CI 77891 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. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product. So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation. You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!