Paula's Choice Resist Super-Light Wrinkle Defense SPF 30 Versus FaceTheory Sunfragma ZnO SPF50

Paula's Choice Resist Super-Light Wrinkle Defense SPF 30 Versus FaceTheory Sunfragma ZnO SPF50 Detailed comparison of Paula's Choice Resist Super-Light Wrinkle Defense SPF 30 versus FaceTheory Sunfragma ZnO SPF50. This mineral sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. Water Cyclopentasiloxane Zinc Oxide PEG-12 Dimethicone PEG/PPG-18/18 Dimethicone Lauroyl Lysine Sodium Chloride Trihydroxystearin Dimethicone Crosspolymer Resveratrol Quercetin Epigallocatechin Gallate Tocopheryl Acetate Tetrahexyldecyl Ascorbate Adenosine Bisabolol Salix Nigra Bark Extract Punica Granatum Extract Haematococcus Pluvialis Extract Hydrolyzed Corn Starch Polysorbate 80 Hydrated Silica Triethoxycaprylylsilane C12-15 Alkyl Benzoate Isopropyl Titanium Triisostearate Caprylyl Glycol Hexylene Glycol Ethylhexylglycerin Iron Oxides Phenoxyethanol Water, Cyclopentasiloxane, Zinc Oxide, PEG-12 Dimethicone, PEG/PPG-18/18 Dimethicone, Lauroyl Lysine, Sodium Chloride, Trihydroxystearin, Dimethicone Crosspolymer, Resveratrol, Quercetin, Epigallocatechin Gallate, Tocopheryl Acetate, Tetrahexyldecyl Ascorbate, Adenosine, Bisabolol, Salix Nigra Bark Extract, Punica Granatum Extract, Haematococcus Pluvialis Extract, Hydrolyzed Corn Starch, Polysorbate 80, Hydrated Silica, Triethoxycaprylylsilane, C12-15 Alkyl Benzoate, Isopropyl Titanium Triisostearate, Caprylyl Glycol, Hexylene Glycol, Ethylhexylglycerin, Iron Oxides, Phenoxyethanol Coco-Caprylate Butyloctyl Salicylate Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine Diethylamino Hydroxybenzoyl Hexyl Benzoate Polyhydroxystearic Acid Hydrogenated Castor Oil Silica Corn Starch Modified Stearic Acid Coco-Caprylate, Butyloctyl Salicylate, Zinc Oxide, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polyhydroxystearic Acid, Hydrogenated Castor Oil, Silica, Corn Starch Modified, Stearic Acid 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. 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 oxide, ZO doesn't break down in sunlight the way some organic filters can, so it holds up over a day of wear. This ingredient is gentle and soothing, making it go-to for sunscreens aimed at sensitive skin, rosacea, or ecezma-prone skin, babies, and children. It's also unlikely to cause the "eye sting" that some sunscreen ingredients are known for, and regulatory agencies broadly consider it non-toxic and safe for topical use. Beyond sun protection, ZO is also a recognized OTC skin protectant. It forms a breathable barrier that shields skin from moisture and irritation while supporting healing. This is why you'll see it as a classic active in diaper rash creams. The only downside to ZO is that it can leave a visible white cast, especially on deeper skin tones. This is the main reason mineral sunscreens have historically felt less cosmetically elegant than chemical or hybrid formulas. Zinc Oxide comes in both non-nano and nano forms. The dividing line is 100nm and anything under is classified as a nanomaterial by the EU. The nano version scatters less visible light which cuts down white case and gives a lighter, more wearable texture. Another thing worth understanding about formulation: Uncoated ZO has some inherent photocatalytic activity. This just means it can generate reactive oxygen species under UV. It's exactly why cosmetic-grade ZO is almost always surface-coated; this coating suppresses that reactivity and improves how the powder disperses and feels. A well-formulated coated ZO largely sidesteps this issue. Zinc Oxide is commonly used anywhere from 10% up to the regulatory maximum in sunscreens (25%). Mineral-only broad-spectrum products ofte