Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 Versus Peter Thomas Roth Instant Mineral SPF 45

Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 Versus Peter Thomas Roth Instant Mineral SPF 45 Detailed comparison of Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 versus Peter Thomas Roth Instant Mineral SPF 45. 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 ~98% of UVB at SPF 45. Homosalate 10% Benzophenone-3 6% Ethylhexyl Salicylate 5% Butyl Methoxydibenzoylmethane 3% Octocrylene 2% Water Butylene Glycol PEG-8 Polyethylene Silica Dimethicone Picrasma Excelsa Wood Extract Sodium Ascorbyl Phosphate Retinyl Palmitate Tocopherol Tocopheryl Acetate Titanium Dioxide Aloe Barbadensis Leaf Juice Bentonite Methyl Glucose Sesquistearate Acrylates/C10-30 Alkyl Acrylate Crosspolymer Sodium Polyacrylate Kaolin Ethylhexylglycerin Disodium EDTA Sodium Hydroxide Phenoxyethanol Chlorphenesin Homosalate 10%, Benzophenone-3 6%, Ethylhexyl Salicylate 5%, Butyl Methoxydibenzoylmethane 3%, Octocrylene 2%, Water, Butylene Glycol, PEG-8, Polyethylene, Silica, Dimethicone, Picrasma Excelsa Wood Extract, Sodium Ascorbyl Phosphate, Retinyl Palmitate, Tocopherol, Tocopheryl Acetate, Titanium Dioxide, Aloe Barbadensis Leaf Juice, Bentonite, Methyl Glucose Sesquistearate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Polyacrylate, Kaolin, Ethylhexylglycerin, Disodium EDTA, Sodium Hydroxide, Phenoxyethanol, Chlorphenesin Zinc Oxide Aluminum Hydroxide Stearic Acid Polymethylsilsesquioxane Triethoxycaprylylsilane Ascorbyl Palmitate Salix Alba Bark Extract Potassium Sorbate Tetrasodium EDTA Titanium Dioxide, Zinc Oxide, Silica, Aluminum Hydroxide, Stearic Acid, Polymethylsilsesquioxane, Triethoxycaprylylsilane, Retinyl Palmitate, Tocopheryl Acetate, Ascorbyl Palmitate, Salix Alba Bark Extract, Water, Butylene Glycol, Chlorphenesin, Potassium Sorbate, Tetrasodium EDTA 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. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol. Chlorphenesin is a biocide. This means it is able to help fight the microorganisms on our skin. It is also able to fight odor-releasing bacteria. Chlorphenesin is soluble in both water and glycerin. Studies show Chlorphenesin is easily absorbed by our skin. You should speak with a skincare professional if you have concerns about using Chlorphenesin. Retinyl Palmitate is a form of retinoid. Retinoids are the superstar class of anti-aging ingredients that include Tretinoin and Retinol. This particular ingredient has had a bumpy year with its rise and fall in popularity. First, Retinyl Palmitate is created from Palmitic Acid and Retinol. It is a Retinol ester and considered one of the weaker forms of retinoid. This is because all retinoids have to be converted to Tretinoin, AKA Retinoic Acid. Retinyl Palmitate is pretty far down the line and has to go through multiple conversions before its effects are seen. Once it's on your skin, enzymes called esterases convert it into Retinol, then into Retinal, and finally into Retinoic Acid; that's three steps with a little lost at each one. The benefits of Retinyl Palmitate are debated due to this long and ineffective conversion line. So why use it at all? The answer is stability. Retinol and Retinoic Acid break down fast when they hit light, heat, and air, and Retinoic Acid can be pretty irritating on top of that. Retinyl Palmitate is much more stable and gentler, making it easier to formulate with and easier on sensitive skin (even if it's weaker gram for gram). Studies show Retinyl Palmitate to help: Newer research from 2023-2025 also found that Retinyl Palmitate works especially well when paired with Retinol. The two seem to cover each other's weak spots; retinol brings the potency while Retinyl Palmitate brings the stability and gentleness. Together, they repair UV damage better than either one does alone. This ingredient used to be found in sunscreens to boost the efficacy of sunscreen filters. The downfall of Retinyl Palmitate was due to released reports about the ingredient being correlated to sun damage and skin tumors. Most of this traces back to a 2012 US National Toxicology Program (NTP) study where hairless mice coated in Retinyl Palmitate cream and exposed to UV light developed skin tumors f