Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 Versus Isntree Hyaluronic Acid Perfect Sun Block SPF 50 PA++++

Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 Versus Isntree Hyaluronic Acid Perfect Sun Block SPF 50 PA++++ Detailed comparison of Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 versus Isntree Hyaluronic Acid Perfect Sun Block SPF 50 PA++++. Th

This source-based comparison does not add ratings or recommend a winner.

Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 Versus Isntree Hyaluronic Acid Perfect Sun Block SPF 50 PA++++ Detailed comparison of Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 versus Isntree Hyaluronic Acid Perfect Sun Block SPF 50 PA++++. 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 50. 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 C12-15 Alkyl Benzoate Propanediol Acrylates Copolymer Niacinamide Cetyl Ethylhexanoate 1,2-Hexanediol Aluminum Stearate Polyhydroxystearic Acid Pentylene Glycol Polymethylsilsesquioxane Caprylic/Capric Triglyceride Pinus Pinaster Bark Extract Ceramide NP Olea Europaea Fruit Oil Ficus Carica Fruit Extract Centella Asiatica Extract Lactobacillus Ferment Lysate Sodium Hyaluronate Alumina Glycerin Hydrogenated Lecithin Stearic Acid Hydroxypropyl Methylcellulose Stearoxy Ether Sodium Stearoyl Glutamate Polyacrylate Crosspolymer-6 Astaxanthin Hyaluronic Acid Sodium Hyaluronate Crosspolymer Hydrolyzed Hyaluronic Acid Ascorbyl Propyl Hyaluronate Hydroxypropyltrimonium Hyaluronate Adenosine Ammonium Acryloyldimethyltaurate/Vp Copolymer Hydrolyzed Sodium Hyaluronate Sodium Acetylated Hyaluronate Xanthan Gum T-Butyl Alcohol Water, C12-15 Alkyl Benzoate, Titanium Dioxide, Propanediol, Butylene Glycol, Acrylates Copolymer, Niacinamide, Cetyl Ethylhexanoate, 1,2-Hexanediol, Aluminum Stearate, Polyhydroxystearic Acid, Pentylene Glycol, Polymethylsilsesquioxane, Caprylic/Capric Triglyceride, Pinus Pinaster Bark Extract, Ceramide NP, Olea Europaea Fruit Oil, Ficus Carica Fruit Extract, Centella Asiatica Extract, Lactobacillus Ferment Lysate, Sodium Hyaluronate, Silica, Alumina, Glycerin, Hydrogenated Lecithin, Stearic Acid, Hydroxypropyl Methylcellulose Stearoxy Ether, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer-6, Tocopherol, Astaxanthin, Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Ascorbyl Propyl Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Adenosine, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Hydrolyzed Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Xanthan Gum, T-Butyl Alcohol, Ethylhexylglycerin 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. Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that: The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure. Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations. Silica, also known as silicon dioxide, is a naturally occurring mineral. It is used as a fine, spherical, and porous powder in cosmetics. Though it has exfoliant properties, the function of silica varies depending on the product. The unique structure of silica enhances the spreadability and adds smoothness, making it a great texture enhancer. It is also used as an active carrier, emulsifier, and mattifier due to its ability to absorb excess oil. In some products, tiny microneedles called spicules are made from silica or hydrolyzed sponge. When you rub them in, they lightly polish away dead skin layers and enhance the penetration of active ingredients. Titanium Dioxide (TD) is a mineral UV filter widely used in sunscreens and cosmetics. It's one of only two UV filters officially classified as "mineral" by regulatory agencies (the other being Zinc Oxide). A really common myth is that mineral filters work by reflecting UV light off your skin like tiny mirrors. They don't only do that; modern research shows TD protects mostly by absorbing UV radiation, the same way chemical filters do. When researchers measured this, reflection accounted for only about 4-5% of the protection (and less than SPF 2 on its own). The other ~95% comes from absorption: the UV photons hit the particle and their energy gets soaked up by its semiconductor band gap rather than bouncing off. So "reflects vs. absorbs" was never really the right way to split mineral from chemical filters. TD gives broad-spectrum protection that's strongest in the UVB and UVA-2 range and weaker in the UVA-1 range. Its UVA protection isn't quite as strong as Zinc Oxide's which is why you'll often see the two paired together. Together, they make a solid broad-spectrum system. TD is a great pick for sensitive, acne-prone, or redness-prone skin because it's non-irritating and chemically inert. Regulatory reviews classify it as a non-sensitizer and mild-to-non-irritant. It's also unlikely to cause the "eye sting" some chemical filters are known for. The main trade-off is co