Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Round Lab Birch Juice Moisturizing UVLock Sunscreen SPF 45 Versus Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++

Round Lab Birch Juice Moisturizing UVLock Sunscreen SPF 45 Versus Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ Detailed comparison of Round Lab Birch Juice Moisturizing UVLock Sunscreen SPF 45 versus Beauty of Joseon Relief Sun : Rice + Probi

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

Round Lab Birch Juice Moisturizing UVLock Sunscreen SPF 45 Versus Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ Detailed comparison of Round Lab Birch Juice Moisturizing UVLock Sunscreen SPF 45 versus Beauty of Joseon Relief Sun : Rice + Probiotics 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. Butyl Methoxydibenzoylmethane 2.7% Homosalate 13.5% Ethylhexyl Salicylate 4.5% Water Butyloctyl Salicylate Propanediol Acrylates Copolymer Butylene Glycol Caprylyl Methicone Polyglyceryl-3 Distearate Benzotriazolyl Dodecyl P-Cresol Niacinamide Diethylhexyl 2,6-Naphthalate Polymethylsilsesquioxane Glycerin Calcium Aluminum Borosilicate 1,2-Hexanediol Poly C10-30 Alkyl Acrylate Pentylene Glycol Cetearyl Alcohol Tromethamine Methylpropanediol Glyceryl Stearate Citrate Betula Platyphylla Japonica Juice Acrylates/C10-30 Alkyl Acrylate Crosspolymer Carbomer Ethylhexylglycerin Artemisia Annua Extract Anthemis Nobilis Flower Oil Sodium Stearoyl Glutamate Glyceryl Polymethacrylate Triethoxycaprylylsilane Pinus Sylvestris Leaf Oil Sparassis Crispa Extract Polyether-1 Allantoin Dipropylene Glycol Glyceryl Glucoside Biosaccharide Gum-1 Tocopherol Portulaca Oleracea Extract Sodium Hyaluronate Hyaluronic Acid Ascorbic Acid Butyl Methoxydibenzoylmethane 2.7%, Homosalate 13.5%, Ethylhexyl Salicylate 4.5%, Water, Butyloctyl Salicylate, Propanediol, Acrylates Copolymer, Butylene Glycol, Caprylyl Methicone, Polyglyceryl-3 Distearate, Benzotriazolyl Dodecyl P-Cresol, Niacinamide, Diethylhexyl 2,6-Naphthalate, Polymethylsilsesquioxane, Glycerin, Calcium Aluminum Borosilicate, 1,2-Hexanediol, Poly C10-30 Alkyl Acrylate, Pentylene Glycol, Cetearyl Alcohol, Tromethamine, Methylpropanediol, Glyceryl Stearate Citrate, Betula Platyphylla Japonica Juice, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Ethylhexylglycerin, Artemisia Annua Extract, Anthemis Nobilis Flower Oil, Sodium Stearoyl Glutamate, Glyceryl Polymethacrylate, Triethoxycaprylylsilane, Pinus Sylvestris Leaf Oil, Sparassis Crispa Extract, Polyether-1, Allantoin, Dipropylene Glycol, Glyceryl Glucoside, Biosaccharide Gum-1, Tocopherol, Portulaca Oleracea Extract, Sodium Hyaluronate, Hyaluronic Acid, Ascorbic Acid Dibutyl Adipate Diethylamino Hydroxybenzoyl Hexyl Benzoate Ethylhexyl Triazone Methylene Bis-Benzotriazolyl Tetramethylbutylphenol Coco-Caprylate/Caprate Diethylhexyl Butamido Triazone Oryza Sativa Extract Oryza Sativa Germ Extract Camellia Sinensis Leaf Extract Lactobacillus/Pumpkin Ferment Extract Bacillus/Soybean Ferment Extract Saccharum Officinarum Extract Macrocystis Pyrifera Extract Cocos Nucifera Fruit Extract Panax Ginseng Root Extract Monascus/Rice Ferment Behenyl Alcohol Polyglyceryl-3 Methylglucose Distearate Decyl Glucoside Polyacrylate Crosspolymer-6 Adenosine Xanthan Gum T-Butyl Alcohol Lactobacillus/Rice Ferment Aspergillus Ferment Saccharomyces/Rice Ferment Filtrate 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, Oryza Sativa Extract, Oryza Sativa Germ Extract, Camellia Sinensis Leaf Extract, Lactobacillus/Pumpkin Fer 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. 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. 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 assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just