Cetaphil Sheer Mineral Face Liquid Sunscreen Broad Spectrum SPF 50 Versus First Aid Beauty Mineral Sunscreen Zinc Oxide Broad Spectrum SPF 30

Cetaphil Sheer Mineral Face Liquid Sunscreen Broad Spectrum SPF 50 Versus First Aid Beauty Mineral Sunscreen Zinc Oxide Broad Spectrum SPF 30 Detailed comparison of Cetaphil Sheer Mineral Face Liquid Sunscreen Broad Spectrum SPF 50 versus First Aid Beauty Mineral Sunscreen Zinc Oxide Broad Spectrum SPF 30. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This mineral sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30. No concerns Zinc Oxide 12% Allantoin Bisabolol Butyloctyl Salicylate C12-15 Alkyl Benzoate Caprylyl Glycol Caprylyl Methicone Dimethicone Dimethiconol Ethylhexylglycerin Hexylene Glycol Isododecane Lauryl PEG-10 Tris(Trimethylsiloxy)Silylethyl Dimethicone Lauryl PEG-8 Dimethicone Niacinamide Octyldodecyl Neopentanoate PEG-10 Phenoxyethanol Polymethylsilsesquioxane Propanediol Sodium Chloride Sodium Hydroxide Tetrasodium Glutamate Diacetate Tocopherol Trilaureth-4 Phosphate Water Zinc Oxide 12%, Allantoin, Bisabolol, Butyloctyl Salicylate, C12-15 Alkyl Benzoate, Caprylyl Glycol, Caprylyl Methicone, Dimethicone, Dimethiconol, Ethylhexylglycerin, Hexylene Glycol, Isododecane, Lauryl PEG-10 Tris(Trimethylsiloxy)Silylethyl Dimethicone, Lauryl PEG-8 Dimethicone, Niacinamide, Octyldodecyl Neopentanoate, PEG-10, Phenoxyethanol, Polymethylsilsesquioxane, Propanediol, Sodium Chloride, Sodium Hydroxide, Tetrasodium Glutamate Diacetate, Tocopherol, Trilaureth-4 Phosphate, Water Zinc Oxide 20% Caprylic/Capric Triglyceride Coconut Alkanes Glycerin Cetearyl Alcohol Coco-Glucoside Avena Sativa Kernel Meal Persea Gratissima Oil Helianthus Annuus Seed Oil Arachidyl Alcohol Behenyl Alcohol Arachidyl Glucoside Polyhydroxystearic Acid Benzyl Alcohol Xanthan Gum Coco-Caprylate/Caprate Zinc Oxide 20%, Water, Caprylic/Capric Triglyceride, Coconut Alkanes, Glycerin, Cetearyl Alcohol, Coco-Glucoside, Avena Sativa Kernel Meal, Tocopherol, Persea Gratissima Oil, Helianthus Annuus Seed Oil, Arachidyl Alcohol, Behenyl Alcohol, Arachidyl Glucoside, Polyhydroxystearic Acid, Benzyl Alcohol, Xanthan Gum, Coco-Caprylate/Caprate 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. Tocopherol is a fat-soluble antioxidant known as Vitamin E. You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells. Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes. It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks. This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage. This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there. In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading. Concentrations usually range from 0.1-1% in most leave-on products. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product. So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation. You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated! Zinc Oxide (ZO) is a mineral broad-spectrum UV filter and the broadest-spectrum filter recognized by the FDA. It covers everything from UVB through to long-wave UVA. On top of sun protection, it has skin protectant and skin-soothing properties too. Here's a myth worth busting: mineral filters are usually described as working by "reflecting" or "bouncing" UV off your skin. That's mostly not true: when researchers actually measured it, ZO and Titanium Dioxide reflect only about 4-5% of UV (less than SPF 2 worth of protection). The vast majority of the work (~95%) is done by absorption, similar to chemical UV filters. ZO is a semiconductor that absorbs UV photos through its energy band gap. So the old "physical blocker vs. chemical absorber" framing is really an oversimplification. Zinc Oxide is one of the most effective broad-spectrum UV filters out there. It protects across UVB, UVA2, and UVA1 with a flat, even absorption curve across the whole UVA-UVB range. That uniform UVA coverage is its standout feature; titanium dioxide skews more toward UVB as its particle size drops so ZO gives more consistent and extended UVA protection. It's also very photostable. As an inorganic