Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Versus Hawaiian Tropic Silk Hydration Weightless Face Sunscreen - SPF 30

Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Versus Hawaiian Tropic Silk Hydration Weightless Face Sunscreen - SPF 30 Detailed comparison of Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 versus Hawaiian Tropic Silk Hydration Weightless Face Sunscreen - SPF 30. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging. 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 Homosalate 5.5% Ethylhexyl Salicylate 4.5% Octocrylene 4% Isohexadecane Diisopropyl Adipate C12-15 Alkyl Benzoate Butylene Glycol Acrylates/C12-22 Alkyl Methacrylate Copolymer Caprylyl Glycol Methylparaben Ceteth-10 Phosphate Dicetyl Phosphate Parfum Propylparaben Polysorbate 60 Disodium EDTA Aminomethyl Propanol Mica Tocopheryl Acetate Aloe Barbadensis Leaf Juice Silk Amino Acids Sodium Ascorbyl Phosphate Colocasia Antiquorum Root Extract Mangifera Indica Fruit Extract Passiflora Incarnata Fruit Extract Plumeria Acutifolia Flower Extract Psidium Guajava Fruit Extract Iron Oxides Butyl Methoxydibenzoylmethane 2%, Homosalate 5.5%, Ethylhexyl Salicylate 4.5%, Octocrylene 4%, Water, Isohexadecane, Diisopropyl Adipate, C12-15 Alkyl Benzoate, Butylene Glycol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Acrylates/C12-22 Alkyl Methacrylate Copolymer, Phenoxyethanol, Caprylyl Glycol, Methylparaben, Ceteth-10 Phosphate, Dicetyl Phosphate, Parfum, Propylparaben, Polysorbate 60, Disodium EDTA, Xanthan Gum, Aminomethyl Propanol, Mica, Tocopheryl Acetate, Aloe Barbadensis Leaf Juice, Silk Amino Acids, Sodium Ascorbyl Phosphate, Colocasia Antiquorum Root Extract, Mangifera Indica Fruit Extract, Passiflora Incarnata Fruit Extract, Plumeria Acutifolia Flower Extract, Psidium Guajava Fruit Extract, Iron Oxides These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Also known as Avobenzone, this ingredient is an oil-soluble used to absorb the full spectrum of UVA rays (peak 357 nm). It's one of the most effective UVA filters available but has a major caveat of photostability: avobenzone is susceptible to photodegradation. This means it can lose efficacy when exposed to sunlight without the help of a stabilizing agent. Studies show antioxidants (like vitamin E or vitamin C) and some UV filters (like octocrylene and Tinosorb S) can meaningfully improve its stability in a formulation. The maximum allowable concentration according to regulation is 3% in the US + Canada, and 5% in the EU, Australia, China, Korea, and ASEAN countries. It has a well-support safety profile: a comprehensive 2025 review found minimal toxicity with no evidence of carcinogenicity. Overall, avobenzone is a safe and regulated ingredient used in sunscreen for over 40 years. 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 s