Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Versus Paula's Choice Calm Barrier Protect Mineral Sunscreen SPF 30

Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Versus Paula's Choice Calm Barrier Protect Mineral Sunscreen SPF 30 Detailed comparison of Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 versus Paula's Choice Calm Barrier Protect Mineral Sunscreen SPF 30. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This hybrid sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30. 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 Caprylic/Capric Triglyceride C12-15 Alkyl Benzoate Zinc Oxide Ethylhexyl Methoxycrylene Polyester-8 Aluminum Stearate C15-19 Alkane Trehalose Inulin Alpha-Glucan Oligosaccharide Ascorbyl Palmitate Echium Plantagineum Seed Oil Helianthus Annuus Seed Oil Simmondsia Chinensis Seed Oil Centella Asiatica Extract Polyhydroxystearic Acid Alumina Glyceryl Caprylate Leuconostoc/Radish Root Ferment Filtrate Ammonium Acryloyldimethyltaurate/Vp Copolymer Caprylhydroxamic Acid Triethoxycaprylylsilane Diheptyl Succinate Allantoin Sodium Polyacrylate Sodium Hydroxide Acacia Senegal Gum Sodium Citrate Capryloyl Glycerin/Sebacic Acid Copolymer Polysorbate 60 Sorbitan Isostearate Glyceryl Stearate Lecithin Glyceryl Oleate Citric Acid Water, Caprylic/Capric Triglyceride, C12-15 Alkyl Benzoate, Titanium Dioxide, Zinc Oxide, Ethylhexyl Methoxycrylene, Glycerin, Polyester-8, Aluminum Stearate, C15-19 Alkane, Hydrogenated Lecithin, Silica, Trehalose, Inulin, Alpha-Glucan Oligosaccharide, Ascorbyl Palmitate, Tocopherol, Echium Plantagineum Seed Oil, Helianthus Annuus Seed Oil, Simmondsia Chinensis Seed Oil, Centella Asiatica Extract, Polyhydroxystearic Acid, Alumina, Glyceryl Caprylate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Leuconostoc/Radish Root Ferment Filtrate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Caprylhydroxamic Acid, Triethoxycaprylylsilane, Diheptyl Succinate, Xanthan Gum, Allantoin, Sodium Polyacrylate, Sodium Hydroxide, Acacia Senegal Gum, Sodium Citrate, Capryloyl Glycerin/Sebacic Acid Copolymer, Polysorbate 60, Sorbitan Isostearate, Glyceryl Ste 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. Hydrogenated Lecithin is a more stable version of lecithin. It's made by taking lecithin (a phospholipid commonly found in soybeans and egg yolks) and hydrogenating it. This just means the unsaturated fatty acids are turned into saturated ones so they don't go bad as easily. This ingredient is an emollient, emulsifier, and penetration enhancer. As an emollient, it helps soften and hydrate skin by trapping moisture within. As an emulsifier, it prevents oil and water ingredients from separating. Hydrogenated Lecithin can form tiny spherical structures made of phospholipid bilayers called liposomes. These liposomes are able to capture compounds inside their structure and deliver them through the skin barrier. Because phospholipids are a natural component of our cell membranes, this ingredient is inherently compatible with skin. A 2021 study found lecithin-based surfactants were less harsh and more tolerable comared to Sodium Lauryl Sulfate (SLS). This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel. It is also an emulsifer, meaning it prevents ingredients such as oil and water from separating. It also helps evenly disperse other ingredients. Silica, also known as silicon dioxide, is a naturally occurring mineral. It is used as a fine, spherical, and porous powder in cosmetics. Though it has exfoliant properties, the function of silica varies depending on the product. The unique structure of silica enhances the spreadability and adds smoothness, making it a great texture enhancer. It is also used as an active carrier, emulsifier, and mattifier due to its ability to absorb excess oil. In some products, tiny microneedles called spicules are made from silica or hydrolyzed sponge. When you rub them in, they lightly polish away dead skin layers and enhance the penetration of active ingredients. Sodium Benzoate is a preservative. It's used in both cosmetic and food