La Roche-Posay Anthelios Uvmune 400 SPF 50+ Tinted Versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50

La Roche-Posay Anthelios Uvmune 400 SPF 50+ Tinted Versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Detailed comparison of La Roche-Posay Anthelios Uvmune 400 SPF 50+ Tinted versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50. This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. Water Alcohol Denat. Triethyl Citrate Diisopropyl Sebacate Silica Ethylhexyl Salicylate Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine Ethylhexyl Triazone Butyl Methoxydibenzoylmethane Glycerin Propanediol C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer CI 77891 Methoxypropylamino Cyclohexenylidene Ethoxyethylcyanoacetate Perlite Tocopherol Caprylic/Capric Triglyceride Acrylates/C10-30 Alkyl Acrylate Crosspolymer Caprylyl Glycol CI 77491 CI 77492 CI 77499 Diethylamino Hydroxybenzoyl Hexyl Benzoate Drometrizole Trisiloxane Hydroxyethylcellulose Sodium Stearoyl Glutamate Terephthalylidene Dicamphor Sulfonic Acid Triethanolamine Trisodium Ethylenediamine Disuccinate Parfum Water, Alcohol Denat., Triethyl Citrate, Diisopropyl Sebacate, Silica, Ethylhexyl Salicylate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Ethylhexyl Triazone, Butyl Methoxydibenzoylmethane, Glycerin, Propanediol, C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer, CI 77891, Methoxypropylamino Cyclohexenylidene Ethoxyethylcyanoacetate, Perlite, Tocopherol, Caprylic/Capric Triglyceride, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Caprylyl Glycol, CI 77491, CI 77492, CI 77499, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Drometrizole Trisiloxane, Hydroxyethylcellulose, Sodium Stearoyl Glutamate, Terephthalylidene Dicamphor Sulfonic Acid, Triethanolamine, Trisodium Ethylenediamine Disuccinate, Parfum Butyl Methoxydibenzoylmethane 2% Ethylhexyl Methoxycinnamate 7.5% Ethylhexyl Salicylate 5% Octocrylene 2% Dimethicone 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. 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. 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, vi