Paula's Choice Resist Skin Restoring Moisturizer With SPF 50 Versus Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50

Paula's Choice Resist Skin Restoring Moisturizer With SPF 50 Versus Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50 Detailed comparison of Paula's Choice Resist Skin Restoring Moisturizer With SPF 50 versus Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50. This barrier-repair moisturizer is formulated around Allantoin and Niacinamide to strengthen the skin barrier and soften the look of wrinkles. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. Butyl Methoxydibenzoylmethane 3% Homosalate 5% Ethylhexyl Methoxycinnamate 7.5% Ethylhexyl Salicylate 5% Benzophenone-3 Water Silica Glycerin Cetearyl Alcohol Dimethicone Butylene Glycol Pentylene Glycol Potassium Cetyl Phosphate Cyclopentasiloxane Pyrus Malus Fruit Extract Vp/Eicosene Copolymer Butyrospermum Parkii Butter Allantoin Niacinamide Tocopherol Glycyrrhiza Glabra Root Extract Aloe Barbadensis Leaf Juice Atractylodes Macrocephala Root Powder Avena Sativa Kernel Extract Coffea Arabica Seed Extract Portulaca Oleracea Extract Mahonia Aquifolium Root Extract Diethylhexyl Syringylidenemalonate Sarcosine Capryloyl Glycine Maltooligosyl Glucoside Cetearyl Glucoside Dimethiconol Acrylates/C10-30 Alkyl Acrylate Crosspolymer Hydrogenated Starch Hydrolysate Hexylene Glycol 4-T-Butylcyclohexanol Glyceryl Stearate PEG-100 Stearate Sodium Hydroxide Xanthan Gum Disodium EDTA Phenoxyethanol Caprylyl Glycol Ethylhexylglycerin Butyl Methoxydibenzoylmethane 3%, Homosalate 5%, Ethylhexyl Methoxycinnamate 7.5%, Ethylhexyl Salicylate 5%, Benzophenone-3, Water, Silica, Glycerin, Cetearyl Alcohol, Dimethicone, Butylene Glycol, Pentylene Glycol, Potassium Cetyl Phosphate, Cyclopentasiloxane, Pyrus Malus Fruit Extract, Vp/Eicosene Copolymer, Butyrospermum Parkii Butter, Allantoin, Niacinamide, Tocopherol, Glycyrrhiza Glabra Root Extract, Aloe Barbadensis Leaf Juice, Atractylodes Macrocephala Root Powder, Avena Sativa Kernel Extract, Coffea Arabica Seed Extract, Portulaca Oleracea Extract, Mahonia Aquifolium Root Extract, Diethylhexyl Syringylidenemalonate, Sarcosine, Capryloyl Glycine, Maltooligosyl Glucoside, Cetearyl Glucoside, Dimethiconol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Hydrogenated Starch Hydrolysate, Hexylene Glycol, 4-T-Butylcyclohexanol, Glyceryl Stearate, PEG-100 Stearate, Sodium Hydroxide, Xanthan Gum, Disodium EDTA, Phenoxyethanol, Caprylyl Glycol, Ethylhexylglycerin Butyl Methoxydibenzoylmethane Ethylhexyl Methoxycinnamate Ethylhexyl Salicylate Octocrylene 3-O-Ethyl Ascorbic Acid Ascorbyl Glucoside Propanediol Tetrahexyldecyl Ascorbate Acetyl Zingerone Dimethicone/Vinyl Dimethicone Crosspolymer Porphyra Umbilicalis Extract Hydrogenated Lecithin Ricinus Communis Seed Oil Laureth-4 Potassium Sorbate Sodium Benzoate Titanium Dioxide Iron Oxides Entada Phaseoloides Bark/Seed Extract Butyl Methoxydibenzoylmethane, Ethylhexyl Methoxycinnamate, Ethylhexyl Salicylate, Octocrylene, Water, Glycerin, Silica, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Dimethicone, Propanediol, Tetrahexyldecyl Ascorbate, Acetyl Zingerone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Diethylhexyl Syringylidenemalonate, Dimethicone/Vinyl Dimethicone Crosspolymer, Porphyra Umbilicalis Extract, Hydrogenated Lecithin, Ricinus Communis Seed Oil, Sodium Hydroxide, Tocopherol, Xanthan Gum, Ethylhexylglycerin, Laureth-4, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Titanium Dioxide, Iron Oxides, Entada Phaseoloides Bark/Seed Extract These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products. As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied. It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin. A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record. 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. Diethylhexyl Syringylidenemalonate (DESM) is a photostabilizer, antioxidant, and SPF booster. One of DESM's main roles is stabilizing UV filters, especially avobenzone. Avobenzone is notoriously unstable when exposed to sunlight. By enhancing the stability of these filters, DESM helps maintain the sunscreen's effectivess through wear. It also helps improve protection against long-wave UVA rays by increasing the wavelength of the formula. Besides enhancing UVA protection, DESM can boost the SPF of high-SPF formulations by up to 5 units. DESM also preserves the color integrity of cosmetic products and helps reduce the chance of yellowing of fading due to light exposure. This ingredient is typically found in concentrations between 0.3% - 0.5%. There are currently no maximum usage limits by regulatory bodies. Though this ingredient is a chemical UV filter, it can often be found in "100% mineral" sunscreens. This is due to regulatory loopholes. Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irri