Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Versus PCA Skin Daily Defense Broad Spectrum SPF 50+

Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Versus PCA Skin Daily Defense Broad Spectrum SPF 50+ Detailed comparison of Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 versus PCA Skin Daily Defense Broad Spectrum SPF 50+. 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 Ethylhexyl Salicylate 4.9% Octocrylene Zinc Oxide Ectoin Bisabolol Butylene Glycol Butyloctyl Salicylate Caffeine Caprylyl Methicone Citrus Aurantium Dulcis Peel Extract Cyclopentasiloxane Ethyl Ferulate Ethylhexylglycerin Octyldodecyl Neopentanoate Oleth-3 Phosphate PEG-7 Trimethylolpropane Coconut Ether Polyisobutene Propanediol Silybum Marianum Seed Extract Sodium Hyaluronate Sodium Stearoyl Glutamate Tocopheryl Acetate Triethoxycaprylylsilane Ethylhexyl Salicylate 4.9%, Octocrylene, Zinc Oxide, Ectoin, Avena Sativa Bran Extract, Bisabolol, Butylene Glycol, Butyloctyl Salicylate, Caffeine, Caprylyl Methicone, Citrus Aurantium Dulcis Peel Extract, Cyclopentasiloxane, Ethyl Ferulate, Ethylhexylglycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Octyldodecyl Neopentanoate, Oleth-3 Phosphate, PEG-7 Trimethylolpropane Coconut Ether, Phenoxyethanol, Polyisobutene, Propanediol, Silybum Marianum Seed Extract, Sodium Hyaluronate, Sodium Stearoyl Glutamate, Tocopheryl Acetate, Triethoxycaprylylsilane, Water Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Avena Sativa Bran Extract comes from oatmeal. The bran is the shell covering the oat. This ingredient is an abrasive, meaning it exfoliates the top layer of your skin. Ethylhexyl Salicylate (also called Octisalate or Octyl Salicylate) is an oil-soluble organic UV filter that's been used in sunscreen since the 1950's. It absorbs UVB light in the 280-320 nm range with a peak absorbance around 306 nm. You'll often see it paired with other UV filters to boost overall SPF because octisalate is a fairly week filter on its own. The reason you'll see it so often is because it can help solubilize and stabilize the trickier filters like oxybenzone and avobenzone. Unlike these filters, octisalate has pretty good photostability and doesn't create skin-damaging free radicals when exposed to sunlight. The fatty-alcohol part of the molecule also gives it a light, emollient feel so it doubles as a nice texture enhancer. Usage levels vary around the world: Safety-wise, this ingredient has a pretty reassuring track record. The EU's Scientific Committee on Consumer Products (SCCP) found very low skin penetration in human skin tests and negative results for irritation, phototoxicity, and photoallergy. The real-world allergy risk is pretty low too; a 2012 European study of 1,031 people recorded only 2 reactions to it (a rate of 0.19%). You might have seen scary headlines about sunscreen getting into your blood. In 2019, the FDA found that several chemical filters can absorb through the skin and show up in the bloodstream at small but measurable levels. Here's the important part: these tiny levels are just a cutoff the FDA uses to decide which ingredients need more testing and doesn't mean anything harmful was found. The researchers were clear that the results are no reason to stop wearing sunscreen. 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. Octocrylene is an oil-soluble organic UV filter that mainly absorbs UVB and short wave UVA II light. Its real superpower is teamwork: octocrylene is remarkably photostable and is most famous for stabilizing avobenzone (the workhorse UVA filter). This ingredient is commonly used to enhance both UVB and UVA protection due to its unique property in stabilizing avobenzone. It also pulls double duty by boosting water resistance and giving formulas a smooth, spreadable feel. The EU's Scientific Committee on Consumer Safety (SCCS) has deemed octocrylene to be safe as a UV-filter at concentrations up to 10% (capped at 9% in propellant sprays). The US also permits it up to 10%. Two things worth knowing: You'll usually see this ingredient used in concentrations between 2-10% (higher amounts when used as