Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50 Versus Ultra Violette Clean Screen SPF 30 Fragrance Free Weightless Gel Skinscreen

Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50 Versus Ultra Violette Clean Screen SPF 30 Fragrance Free Weightless Gel Skinscreen Detailed comparison of Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50 versus Ultra Violette Clean Screen SPF 30 Fragrance Free Weightless Gel Skinscreen. 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 Ethylhexyl Methoxycinnamate Ethylhexyl Salicylate Octocrylene Water Glycerin Silica 3-O-Ethyl Ascorbic Acid Ascorbyl Glucoside Dimethicone Propanediol Tetrahexyldecyl Ascorbate Acetyl Zingerone Acrylates/C10-30 Alkyl Acrylate Crosspolymer Diethylhexyl Syringylidenemalonate Dimethicone/Vinyl Dimethicone Crosspolymer Porphyra Umbilicalis Extract Hydrogenated Lecithin Ricinus Communis Seed Oil Sodium Hydroxide Tocopherol Xanthan Gum Ethylhexylglycerin Laureth-4 Phenoxyethanol Potassium Sorbate Sodium Benzoate Titanium Dioxide Iron Oxides Entada Phaseoloides Bark/Seed Extract Butyl Methoxydibenzoylmethane, Ethylhexyl Methoxycinnamate, Ethylhexyl Salicylate, Octocrylene, Water, Glycerin, Silica, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Dimethicone, Propanediol, Tetrahexyldecyl Ascorbate, Acetyl Zingerone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Diethylhexyl Syringylidenemalonate, Dimethicone/Vinyl Dimethicone Crosspolymer, Porphyra Umbilicalis Extract, Hydrogenated Lecithin, Ricinus Communis Seed Oil, Sodium Hydroxide, Tocopherol, Xanthan Gum, Ethylhexylglycerin, Laureth-4, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Titanium Dioxide, Iron Oxides, Entada Phaseoloides Bark/Seed Extract Titanium Dioxide 3% Methylene Bis-Benzotriazolyl Tetramethylbutylphenol 2.25% Diethylamino Hydroxybenzoyl Hexyl Benzoate 1.6% Butylene Glycol Caprylic/Capric Triglyceride Caprylyl Glycol Polysorbate 60 Ammonium Acryloyldimethyltaurate/Vp Copolymer Saccharide Isomerate Decyl Glucoside Caprylhydroxamic Acid Propylene Glycol Citric Acid Sodium Chloride CI 77491 CI 77492 CI 77499 Titanium Dioxide 3%, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol 2.25%, Diethylamino Hydroxybenzoyl Hexyl Benzoate 1.6%, Water, Butylene Glycol, Caprylic/Capric Triglyceride, Silica, Caprylyl Glycol, Polysorbate 60, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Saccharide Isomerate, Decyl Glucoside, Caprylhydroxamic Acid, Glycerin, Propylene Glycol, Xanthan Gum, Citric Acid, Dimethicone, Sodium Chloride, CI 77491, CI 77492, CI 77499 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient. Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy. 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. 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. Titanium Dioxide (TD) is a mineral UV filter widely used in sunscreens and cosmetics. It's one of only two UV filters officially classified as "mineral" by regulatory agencies (the other being Zinc Oxide). A really common myth is that mineral filters work by reflecting UV light off your skin like tiny mirrors. They don't only do that; modern research shows TD protects mostly by absorbing UV radiation, the same way chemical filters do. When researchers measured this, reflection accoun