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Skin science article

Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ Versus Skingredients Skin Shield Moisturizing + Priming SPF 50 PA+++

Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ Versus Skingredients Skin Shield Moisturizing + Priming SPF 50 PA+++ This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This hybrid sunscreen covers the full UV rang

Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ Versus Skingredients Skin Shield Moisturizing + Priming SPF 50 PA+++

This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.

This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.

What's inside

Key Ingredients

Benefits

Concerns

No concerns

Ingredients Side-by-side

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 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

Poly C10-30 Alkyl Acrylate

Polyglyceryl-3 Methylglucose Distearate

Decyl Glucoside

Tromethamine

Carbomer

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Sodium Stearoyl Glutamate

Polyacrylate Crosspolymer-6

Adenosine

Xanthan Gum

T-Butyl Alcohol

Tocopherol

Lactobacillus/Rice Ferment

Aspergillus Ferment

Saccharomyces/Rice Ferment Filtrate

Pentylene Glycol

Ethylhexylglycerin

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 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, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Decyl Glucoside, Tromethamine, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer-6, Adenosine, Xanthan Gum, T-Butyl Alcohol, Tocopherol, Lactobacillus/Rice Ferment, Aspergillus Ferment, Saccharomyces/Rice Ferment Filtrate, Pentylene Glycol, Ethylhexylglycerin

Zinc Oxide 12%

C12-15 Alkyl Benzoate

Butyloctyl Salicylate

Isododecane

Lauryl PEG-8 Dimethicone

Octyldodecyl Neopentanoate

Dimethicone

Lauryl PEG-10 Tris(Trimethylsiloxy)Silylethyl Dimethicone

Dimethiconol

Trilaureth-4 Phosphate

Allantoin

Bisabolol

Caprylyl Glycol

Hexylene Glycol

PEG-10

Phenoxyethanol

Sodium Chloride

Sodium Hydroxide

Tetrasodium Glutamate Diacetate

Triethoxycaprylylsilane

CI 77492

CI 77499

CI 77491

Water, Zinc Oxide 12%, C12-15 Alkyl Benzoate, Butyloctyl Salicylate, Isododecane, Lauryl PEG-8 Dimethicone, Polymethylsilsesquioxane, Octyldodecyl Neopentanoate, Propanediol, Caprylyl Methicone, Dimethicone, Niacinamide, Lauryl PEG-10 Tris(Trimethylsiloxy)Silylethyl Dimethicone, Dimethiconol, Trilaureth-4 Phosphate, Tocopherol, Allantoin, Bisabolol, Caprylyl Glycol, Ethylhexylglycerin, Hexylene Glycol, PEG-10, Phenoxyethanol, Sodium Chloride, Sodium Hydroxide, Tetrasodium Glutamate Diacetate, Triethoxycaprylylsilane, CI 77492, CI 77499, CI 77491

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Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

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.

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 be sure to patch test if you are unsure.

Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.

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.

Polymethylsilsesquioxane is a silicone used as a film forming agent.

When applied to the skin, this ingredient creates an invisible film on the surface. This film still allows oxygen to pass through, but prevents moisture from escaping. This can help condition and hydrate the skin. It also leaves a silky feel when applied.

Polymethylsilsesquioxane has not been shown to clog pores. It has been deemed safe to use up to 55%, but most cosmetics use much less.

If you have concerns about using this ingredient, we recommend speaking with a professional.

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.

Tocopherol 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.

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!

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

01

Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 031,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
  4. 04It is a:
  5. 05Humectant, drawing moisture into the skin
  6. 06Emollient, helping to soften skin
  7. 07Solvent, dispersing and stabilizing formulas
  8. 08Preservative booster, enhancing the antimicrobial activity of other preservatives
  9. 09Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products.
  10. 10As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied.
  11. 11It 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.
  12. 12A 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.
  13. 13Arginine is a semi-essential amino acid. This just means our bodies can product a bit on its own, but sometimes needs a little boost from food sources.
  14. 14It is a part of your skin's natural moisturizing factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.
  15. 15Here's an interesting thing about Arginine: your skin converts it into urea through the Krebs-Henseleit urea cycle. Urea is one of the most effective humectants your skin naturally produces.
  16. 16A clinical study showed applying 2.5% arginine hydrochloride to atopic dermatitis skin showed significant urea levels in the stratum corneum and improved moisture in just four weeks.
  17. 17Arginine is also a precursor to nitric oxide; nitric oxide improves microcirculation and supports wound healing and collagen synthesis.
  18. 18One study found that an amino acid complex containing Arginine reduced skin irritation, improved hydration, and accelerated skin repair in clinical / in-vivo studies.
  19. 19Arginine itself is an amino acid and not a fatty acid, oil, or ester. On its own, it's not a direct food source for Malassezia, or the yeast that causes fungal acne.
  20. 20Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Source · skinsort.com
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Product index

Related product references

03

Comparison edit

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