Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Beauty of Joseon Day Dew Sunscreen SPF 50 Versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++

Beauty of Joseon Day Dew Sunscreen SPF 50 Versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ Detailed comparison of Beauty of Joseon Day Dew Sunscreen SPF 50 versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++. This chemical sunscreen covers

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Beauty of Joseon Day Dew Sunscreen SPF 50 Versus Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ Detailed comparison of Beauty of Joseon Day Dew Sunscreen SPF 50 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. Butyl Methoxydibenzoylmethane Homosalate Ethylhexyl Salicylate Octocrylene Water Butyloctyl Salicylate Glycerin Dimethicone Poly C10-30 Alkyl Acrylate Vp/Eicosene Copolymer Cetearyl Alcohol Niacinamide Sodium Stearoyl Glutamate Ammonium Polyacryloyldimethyl Taurate Hydroxyacetophenone Phenoxyethanol Tocopheryl Acetate Panthenol Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Xanthan Gum Propanediol Oryza Sativa Extract 1,2-Hexanediol Sodium Hyaluronate Butyl Methoxydibenzoylmethane, Homosalate, Ethylhexyl Salicylate, Octocrylene, Water, Butyloctyl Salicylate, Glycerin, Dimethicone, Poly C10-30 Alkyl Acrylate, Vp/Eicosene Copolymer, Cetearyl Alcohol, Niacinamide, Sodium Stearoyl Glutamate, Ammonium Polyacryloyldimethyl Taurate, Hydroxyacetophenone, Phenoxyethanol, Tocopheryl Acetate, Panthenol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Xanthan Gum, Propanediol, Oryza Sativa Extract, 1,2-Hexanediol, Sodium Hyaluronate Dibutyl Adipate Diethylamino Hydroxybenzoyl Hexyl Benzoate Polymethylsilsesquioxane Ethylhexyl Triazone Methylene Bis-Benzotriazolyl Tetramethylbutylphenol Coco-Caprylate/Caprate Caprylyl Methicone Diethylhexyl Butamido Triazone Butylene Glycol Betula Platyphylla Japonica Juice 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 Polyacrylate Crosspolymer-6 Ethylhexylglycerin Ascorbic Acid Adenosine Pentylene Glycol Behenyl Alcohol Polyglyceryl-3 Methylglucose Distearate Decyl Glucoside Tromethamine T-Butyl Alcohol Tocopherol Carbomer 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 Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum. Topically, glycerin does several things at once: Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3. Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin. This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products. Just know very high concentrations (>40%) can feel tacky in low humidity. Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine. Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging. And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin. You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this. In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it. If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare. When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration. When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes. In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution). Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin. Another name for v