Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Beauty of Joseon Daily Relief Sunscreen SPF 40 Versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++

Beauty of Joseon Daily Relief Sunscreen SPF 40 Versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ Detailed comparison of Beauty of Joseon Daily Relief Sunscreen SPF 40 versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++. This chemical sunscr

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Beauty of Joseon Daily Relief Sunscreen SPF 40 Versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ Detailed comparison of Beauty of Joseon Daily Relief Sunscreen SPF 40 versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++. This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging. This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. Water Homosalate Butyloctyl Salicylate Octocrylene Ethylhexyl Salicylate Dipropylene Glycol Diethylhexyl 2,6-Naphthalate Polymethylsilsesquioxane Butyl Methoxydibenzoylmethane Glycerin Caprylyl Methicone 1,2-Hexanediol Silica Vp/Eicosene Copolymer Pentylene Glycol Behenyl Alcohol Poly C10-30 Alkyl Acrylate Polyglyceryl-3 Methylglucose Distearate Cetearyl Alcohol Glyceryl Stearate Inulin Lauryl Carbamate Tromethamine Carbomer Acrylates/C10-30 Alkyl Acrylate Crosspolymer Sodium Stearoyl Glutamate Ethylhexylglycerin Polyacrylate Crosspolymer-6 Oryza Sativa Extract T-Butyl Alcohol Tocopherol Water, Homosalate, Butyloctyl Salicylate, Octocrylene, Ethylhexyl Salicylate, Dipropylene Glycol, Diethylhexyl 2,6-Naphthalate, Polymethylsilsesquioxane, Butyl Methoxydibenzoylmethane, Glycerin, Caprylyl Methicone, 1,2-Hexanediol, Silica, Vp/Eicosene Copolymer, Pentylene Glycol, Behenyl Alcohol, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Cetearyl Alcohol, Glyceryl Stearate, Inulin Lauryl Carbamate, Tromethamine, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Stearoyl Glutamate, Ethylhexylglycerin, Polyacrylate Crosspolymer-6, Oryza Sativa Extract, T-Butyl Alcohol, Tocopherol Dibutyl Adipate Propanediol Diethylamino Hydroxybenzoyl Hexyl Benzoate Ethylhexyl Triazone Niacinamide Methylene Bis-Benzotriazolyl Tetramethylbutylphenol Coco-Caprylate/Caprate Diethylhexyl Butamido Triazone Butylene Glycol Betula Platyphylla Japonica Juice Sodium Hyaluronate Hyaluronic Acid Glyceryl Glucoside Dipotassium Glycyrrhizate Allantoin Portulaca Oleracea Extract Artemisia Annua Extract Pinus Sylvestris Leaf Oil Anthemis Nobilis Flower Oil Ascorbic Acid Adenosine Decyl Glucoside Xanthan Gum Water, Dibutyl Adipate, Propanediol, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polymethylsilsesquioxane, Ethylhexyl Triazone, Niacinamide, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Coco-Caprylate/Caprate, Caprylyl Methicone, Diethylhexyl Butamido Triazone, Glycerin, 1,2-Hexanediol, Butylene Glycol, Betula Platyphylla Japonica Juice, Sodium Hyaluronate, Hyaluronic Acid, Glyceryl Glucoside, Dipotassium Glycyrrhizate, Allantoin, Portulaca Oleracea Extract, Artemisia Annua Extract, Pinus Sylvestris Leaf Oil, Anthemis Nobilis Flower Oil, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer-6, Ethylhexylglycerin, Ascorbic Acid, Adenosine, Pentylene Glycol, Behenyl Alcohol, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Decyl Glucoside, Tromethamine, Xanthan Gum, T-Butyl Alcohol, Tocopherol, Carbomer These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives 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. Behenyl Alcohol is a type of fatty alcohol (these are different from the drying, solvent alcohols). Fatty Alcohols have hydrating properties and are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils; behenyl alcohol is derived from the fats of vegetable oils. Emollients help keep your skin soft and hydrated by creating a film that traps moisture in. In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores. Caprylyl Methicone is a synthetic and lightweight silicone fluid. It gives products a silky, dry-touch finish without the heaviness of pure oils. Though the EU CosIng Database lists this ingredient as a skin conditioner, it is also used for sensory reasons. It spreads easily, cuts greasiness, and reduces tackiness. This ingredient is volatile which means it will mostly evaporate (but it evaporates slower than older cyclomethicones, like Cyclotetrasiloxane). Typical concentration ranges from 1-30% depending on if it's being used to tweak the feel of a product or acting as the main emollient. Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. 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