Supergoop! Mattescreen Sunscreen SPF 40 Versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50

Supergoop! Mattescreen Sunscreen SPF 40 Versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Detailed comparison of Supergoop! Mattescreen Sunscreen SPF 40 versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50. This mineral sunscreen covers the full UV range and blocks ~98% of UVB at SPF 40. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. Titanium Dioxide 0.7% Zinc Oxide 17% Cyclopentasiloxane Coco-Caprylate Isododecane Coco-Caprylate/Caprate Dimethicone Crosspolymer Silica Dimethyl Silylate Dimethicone/Bis-Isobutyl PPG-20 Crosspolymer Argania Spinosa Kernel Oil Tocopheryl Acetate C12-15 Alkyl Benzoate Polyglyceryl-3 Polyricinoleate Dimethicone CI 77492 Water Isostearic Acid Propanediol Ethylhexylglycerin PEG/PPG-18/18 Dimethicone Bisabolol Alumina Hydrogen Dimethicone CI 77491 Polyhydroxystearic Acid CI 77499 Buddleja Officinalis Flower Extract Triethoxycaprylylsilane Hydrangea Arborescens Root Extract Morus Alba Root Extract Polysorbate 20 Resveratrol Scutellaria Lateriflora Extract Caprylyl Glycol Hexylene Glycol Pentapeptide-21 Titanium Dioxide 0.7%, Zinc Oxide 17%, Cyclopentasiloxane, Coco-Caprylate, Isododecane, Coco-Caprylate/Caprate, Dimethicone Crosspolymer, Silica Dimethyl Silylate, Dimethicone/Bis-Isobutyl PPG-20 Crosspolymer, Argania Spinosa Kernel Oil, Tocopheryl Acetate, C12-15 Alkyl Benzoate, Polyglyceryl-3 Polyricinoleate, Dimethicone, CI 77492, Water, Isostearic Acid, Propanediol, Ethylhexylglycerin, PEG/PPG-18/18 Dimethicone, Bisabolol, Alumina, Hydrogen Dimethicone, CI 77491, Polyhydroxystearic Acid, CI 77499, Buddleja Officinalis Flower Extract, Triethoxycaprylylsilane, Hydrangea Arborescens Root Extract, Morus Alba Root Extract, Polysorbate 20, Resveratrol, Scutellaria Lateriflora Extract, Caprylyl Glycol, Hexylene Glycol, Pentapeptide-21 Butyl Methoxydibenzoylmethane 2% Ethylhexyl Methoxycinnamate 7.5% Ethylhexyl Salicylate 5% Octocrylene 2% Glycerin Silica 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 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. 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 accounted for only about 4-5% of the protection (and less than SPF 2 on its own). The other ~95% comes from absorption: the UV photons hit the particle and their energy gets soaked up by its semiconductor band gap rather than bouncing off. So "reflects vs. absorbs" was never really the right way to split mineral from chemical filters. TD gives broad-spectrum protection that's strongest in the UVB and UVA-2 range and weaker in the UVA-1 range. Its UVA protection isn't quite as strong as Zinc Oxide's which is why you'll often see the two paired together. Together, they make a solid broad-spectrum system. TD is a great pick for sensitive, acne-prone, or redness-prone skin because it's non-irritating and chemically inert. Regulatory reviews classify it as a non-sensitizer and mild-to-non-irritant. It's also unlikely to cause the "eye sting" some chemical filters are known for. The main trade-off is cosmetic; TD can leave a white cast and has a thicker texture. This is why mineral sunscreens are often less cosmetically elegant than chemical or hybrid formulas (and harder to shade-match on deeper skin tones). Formulators often use micronized or nano-sized TD to cut down on white case and improve spreadability. Smaller particles scatter less visible light so the formula looks less chalky while still filtering UV. TD is almost always bundled with coatings like Alumina, Silica, Stearic Acid, or Dimethicone. These coatings do two important jobs: TD can be used at up to 25% in a finished sunscreen; this is the regulatory ceiling in both the US and the EU. In practice, the amou