Ishizawa Labs Shigaisen Yohou Smooth UV Gel SPF 45 Versus Beauty of Joseon Relief Sun Aqua-Fresh Rice + B5 SPF 50+
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.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningEthylhexyl Methoxycinnamate
UV Absorber
Silica
Abrasive
Diethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Citrus Aurantium Dulcis Peel Oil
Masking
Dipotassium Glycyrrhizate
Humectant
Alpha-Arbutin
Antioxidant
Citrus Grandis Fruit Extract
Astringent
Salvia Officinalis Extract
Antimicrobial
Sodium Hyaluronate
Humectant
Sodium Acetylated Hyaluronate
Humectant
Scutellaria Baicalensis Root Extract
Astringent
Morus Alba Bark Extract
Skin ConditioningChamomilla Recutita Flower Extract
Masking
Malpighia Emarginata Fruit Extract
Skin ConditioningHydrolyzed Collagen
Emollient
Aloe Barbadensis Leaf Extract
Emollient
Silver
Cosmetic ColorantPlatinum
Antimicrobial
Cellulose Gum
Emulsion StabilisingSodium Bicarbonate
Abrasive
Polyglyceryl-10 Laurate
Skin Conditioning
Potassium Hydroxide
BufferingCarbomer
Emulsion StabilisingTocopherol
Antioxidant
Butylene Glycol
Humectant
Phenoxyethanol
Preservative
Water, Ethylhexyl Methoxycinnamate, Silica, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Citrus Aurantium Dulcis Peel Oil, Dipotassium Glycyrrhizate, Alpha-Arbutin, Citrus Grandis Fruit Extract, Salvia Officinalis Extract, Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Scutellaria Baicalensis Root Extract, Morus Alba Bark Extract, Chamomilla Recutita Flower Extract, Malpighia Emarginata Fruit Extract, Hydrolyzed Collagen, Aloe Barbadensis Leaf Extract, Silver, Platinum, Cellulose Gum, Sodium Bicarbonate, Polyglyceryl-10 Laurate, Potassium Hydroxide, Carbomer, Tocopherol, Butylene Glycol, Phenoxyethanol
Water
Skin ConditioningOryza Sativa Seed Water
Antimicrobial
Dibutyl Adipate
EmollientButyloctyl Salicylate
Skin Conditioning
Ethylhexyl Triazone
UV Absorber
1,2-Hexanediol
Skin Conditioning
Drometrizole Trisiloxane
UV Absorber
Polyglyceryl-3 Distearate
Emulsifying
Terephthalylidene Dicamphor Sulfonic Acid
UV Absorber
Diethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Polymethylsilsesquioxane
Tromethamine
BufferingPanthenol
Skin Conditioning
Pentylene Glycol
Skin Conditioning
Glyceryl Stearate
Emollient
Silica
Abrasive
Caprylyl Methicone
Skin Conditioning
Avena Sativa Kernel Extract
Abrasive
Cynara Scolymus Leaf Extract
Skin ConditioningCamellia Sinensis Leaf Water
Masking
Hydrogenated Lecithin
Emulsifying
Oryza Sativa Bran Oil
Emollient
Sodium Hyaluronate
Humectant
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
Skin Conditioning
Propanediol
Solvent
Potassium Cetyl Phosphate
EmulsifyingPoly C10-30 Alkyl Acrylate
Emulsion StabilisingMethylpropanediol
SolventCarbomer
Emulsion StabilisingAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingEthylhexylglycerin
Skin ConditioningXanthan Gum
EmulsifyingGlycerin
Humectant
Polyether-1
Polyquaternium-51
Skin Conditioning
Beta-Glucan
Skin Conditioning
Biosaccharide Gum-1
Humectant
Inositol
Humectant
Tocopherol
Antioxidant
Ferulic Acid
Antimicrobial
Citric Acid
Buffering
Ceramide NP
Skin Conditioning
Phytosphingosine
Skin Conditioning
Rice Amino Acids
Skin Conditioning
Rice Sh-Oligopeptide-1
Skin Conditioning
Water, Oryza Sativa Seed Water, Dibutyl Adipate, Butyloctyl Salicylate, Ethylhexyl Triazone, 1,2-Hexanediol, Drometrizole Trisiloxane, Polyglyceryl-3 Distearate, Terephthalylidene Dicamphor Sulfonic Acid, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polymethylsilsesquioxane, Tromethamine, Panthenol, Pentylene Glycol, Glyceryl Stearate, Silica, Caprylyl Methicone, Avena Sativa Kernel Extract, Cynara Scolymus Leaf Extract, Camellia Sinensis Leaf Water, Hydrogenated Lecithin, Oryza Sativa Bran Oil, Sodium Hyaluronate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Propanediol, Potassium Cetyl Phosphate, Poly C10-30 Alkyl Acrylate, Methylpropanediol, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ethylhexylglycerin, Xanthan Gum, Glycerin, Polyether-1, Polyquaternium-51, Beta-Glucan, Biosaccharide Gum-1, Inositol, Tocopherol, Ferulic Acid, Citric Acid, Ceramide NP, Phytosphingosine, Rice Amino Acids, Rice Sh-Oligopeptide-1
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
Learn more about CarbomerDiethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a chemical UV-A absorber. It is formulated for high UVA protection (320-400 nm).
DHHB is well-liked for:
DHHB has been approved by the EU, Japan, Taiwan, and South America for use up to 10%. Unfortunately, it has not been approved for use in the US or Canada due to slow regulatory processes.
This ingredient is soluble in oils, fats, and lipids.
Learn more about Diethylamino Hydroxybenzoyl Hexyl BenzoateSilica, 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.
Learn more about SilicaSodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
Learn more about Sodium HyaluronateTocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolWater. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!
Learn more about Water
