Beauty of Joseon Day Dew Sunscreen SPF 50 Versus COSRX Ultra-Light Invisible Sunscreen SPF 50 PA++++

Beauty of Joseon Day Dew Sunscreen SPF 50 Versus COSRX Ultra-Light Invisible 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.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

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

Aloe Barbadensis Leaf Water

Diethylhexyl Succinate

Drometrizole Trisiloxane

Ethylhexyl Triazone

Diethylamino Hydroxybenzoyl Hexyl Benzoate

Terephthalylidene Dicamphor Sulfonic Acid

Behenyl Alcohol

Methyl Trimethicone

Hamamelis Virginiana Leaf Water

Tromethamine

Sodium Polyacryloyldimethyl Taurate

Polyacrylate Crosspolymer-6

Arachidyl Alcohol

Caprylyl Glycol

Ethylhexylglycerin

Arachidyl Glucoside

Sodium Metaphosphate

Adenosine

Tocopherol

Allantoin

Citric Acid

Potassium Sorbate

Aloe Barbadensis Leaf Water, Diethylhexyl Succinate, Propanediol, Water, Drometrizole Trisiloxane, Ethylhexyl Triazone, Niacinamide, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Terephthalylidene Dicamphor Sulfonic Acid, 1,2-Hexanediol, Behenyl Alcohol, Methyl Trimethicone, Hamamelis Virginiana Leaf Water, Tromethamine, Sodium Polyacryloyldimethyl Taurate, Polyacrylate Crosspolymer-6, Arachidyl Alcohol, Caprylyl Glycol, Ethylhexylglycerin, Arachidyl Glucoside, Sodium Metaphosphate, Adenosine, Tocopherol, Sodium Hyaluronate, Allantoin, Citric Acid, Potassium Sorbate

Reviews

Alternatives

Ingredients Explained

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

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 vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.

The type of niacinamide used in skincare is synthetically created.

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

Sodium 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.

Water. 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!

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