Shiseido Urban Environment Fresh-Moisture Sunscreen SPF 42 Versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50

Shiseido Urban Environment Fresh-Moisture Sunscreen SPF 42 Versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 Detailed comparison of Shiseido Urban Environment Fresh-Moisture Sunscreen SPF 42 versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 42. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. Butyl Methoxydibenzoylmethane 2.3% Homosalate 10% Ethylhexyl Salicylate 5% Octocrylene 5% Water Butylene Glycol Glycerin Caprylyl Methicone Silica Dipropylene Glycol Glyceryl Diisostearate Sd Alcohol 40-B PEG/PPG-14/7 Dimethyl Ether Beheneth-20 Behenyl Alcohol C30-45 Alkyl Methicone Trehalose Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer Xanthan Gum Ascorbyl Tetraisopalmitate Dipotassium Glycyrrhizate Sodium Hyaluronate Sanguisorba Officinalis Root Extract Camellia Sinensis Leaf Extract Garcinia Mangostana Bark Extract Perilla Ocymoides Leaf Extract Spirulina Platensis Extract C30-45 Olefin Bis-PEG-18 Methyl Ether Dimethyl Silane Stearyl Alcohol Disodium EDTA Potassium Hydroxide BHT Tocopherol Carbomer Alcohol Sodium Metabisulfite Synthetic Fluorphlogopite Sodium Citrate Phenoxyethanol Parfum Mica Titanium Dioxide Butyl Methoxydibenzoylmethane 2.3%, Homosalate 10%, Ethylhexyl Salicylate 5%, Octocrylene 5%, Water, Butylene Glycol, Glycerin, Caprylyl Methicone, Silica, Dipropylene Glycol, Glyceryl Diisostearate, Sd Alcohol 40-B, PEG/PPG-14/7 Dimethyl Ether, Beheneth-20, Behenyl Alcohol, C30-45 Alkyl Methicone, Trehalose, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Xanthan Gum, Ascorbyl Tetraisopalmitate, Dipotassium Glycyrrhizate, Sodium Hyaluronate, Sanguisorba Officinalis Root Extract, Camellia Sinensis Leaf Extract, Garcinia Mangostana Bark Extract, Perilla Ocymoides Leaf Extract, Spirulina Platensis Extract, C30-45 Olefin, Bis-PEG-18 Methyl Ether Dimethyl Silane, Stearyl Alcohol, Disodium EDTA, Potassium Hydroxide, BHT, Tocopherol, Carbomer, Alcohol, Sodium Metabisulfite, Synthetic Fluorphlogopite, Sodium Citrate, Phenoxyethanol, Parfum, Mica, Titanium Dioxide Butyl Methoxydibenzoylmethane 2% Ethylhexyl Methoxycinnamate 7.5% Octocrylene 2% Dimethicone Chamomilla Recutita Flower Extract Vitis Vinifera Seed 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 Dimethicone/Vinyl Dimethicone Crosspolymer Diethylhexyl Syringylidenemalonate Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Sodium Carbomer Benzyl Alcohol Sodium Benzoate Potassium Sorbate 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, 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. Camellia Sinensis Leaf Extract (tea extract) is one of the most well-researched plant extracts in skincare with an impressive resume. Black tea, green tea, and oolong tea are all harvested from the Camellia Sinensis plant. Studies show green tea extract and its catechins (like epigallocatechin gallate (EGCG)) help your skin cells product energy more efficiently and reducing the number of free-radicals that can damage your skin from the inside. In lab-grown skin models, this translated to younger, healthier, and stronger skin. There's also good sun protection data; researchers saw less DNA damage and redness on human skin when green tea was applied before UVB exposure. And the more they applied, the better the protection. Needless to say, this ingredient shouldn't replace your sunscreen. But it is a great supportive ingredient that you can already find in many sunscreens and antioxidant serums. A 2009 study found a 2% green tea lotion was effective for mild-to-moderate acne thanks to its anti-inflammatory and mild antimicrobial activity. The quality of the extract matters a lot here: Good extracts contain 50-90% catechins while lower quality ones are mostly there for marketing. We recommend reaching out to the brand if you have questions about the quality or source of their ingredients. Human Repeated Insult Patch Testing showed no irritation or sensitization at use concentrations (0.86% in leave-on products and up to 30% as leaf water). 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 filte