Skin79 Seoul Girl's Beauty Secret Brightening Sheet Mask

Skin79 Seoul Girl's Beauty Secret Brightening Sheet Mask

Efficacy100/100IrritancyHigh

Works for

Moisturizing
Niacinamide, Glycerin + 5 more
Works well
What the product description says
“Getting to work in twenty minutes, this hydrating mask simultaneously reduces redness and balances the skin for an even, radiant complexion.”
Source: Beauty Bay

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": betaine, glycerin.

When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~3.4–5.2%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.5–6.7%
BetaineKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and improves the product texture~1.9–2.9%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.05–0.1%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.9–1.3%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~0.3–0.75%
AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.3–0.75%
Evens skin tone
Side benefit · Niacinamide
Works well

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: niacinamide

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~3.4–5.2%
Anti-aging
Side benefit · Niacinamide
Works well

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains niacinamide.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~3.4–5.2%
Anti-blemish
Side benefit · Niacinamide, Allantoin
Works well

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~3.4–5.2%
AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.3–0.75%

Can it cause trouble?

Irritancy
7 flagged ingredients — patch-test recommended
High risk
We flagged 7 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~2.6–3.9%est.
Illicium verum fruit extractAnise fruit extract. Used as a fragrance. Can be irritatingHigh~0.05–0.15%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.01–0.05%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.9–1.3%est.
EthylhexylglycerinA preservativeMedium~0.1–0.5%est.
1,2-hexanediolA preservativeMedium~0.05–0.25%est.
Disodium edtaStabilizes the product formulationMedium~0.05–0.2%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~4.5–6.7%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Niacinamide~3.4–5.2%
Hero · Moisturizing, Anti-blemish
Irritation risk
Low
Works for
Anti-agingAnti-blemishEvens skin toneMoisturizingReduces irritationAntibacterialAnti-inflammatoryReduces redness

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
Alcohol~2.6–3.9%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
Betaine~1.9–2.9%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin and improves the product texture

More about Betaine
Hydroxyethylcellulose~1.5–2.3%
Formula
Irritation risk
Low

Used to thicken product formulations and create gel-like textures

More about Hydroxyethylcellulose
Carbomer~1.2–1.9%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Polysorbate 80~1.1–1.6%
Formula
Irritation risk
Low
Works for
Cleansing

Helps water and oil mix together

More about Polysorbate 80
Caprylyl glycol~0.9–1.3%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Tromethamine~0.5–1.2%
Formula
Irritation risk
Low

Helps adjust pH in products

More about Tromethamine
Allantoin~0.3–0.75%
Under-dosed
Irritation risk
Low
Works for
Anti-inflammatoryMoisturizingReduces irritationReduces rednessAnti-blemishExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin
Butylene glycol~0.3–0.75%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Prunus yedoensis flower extract~0.2–0.7%
Formula
Prunus mume flower extract~0.15–0.6%
Formula
Ethylhexylglycerin~0.1–0.5%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
1,2-hexanediol~0.05–0.25%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Propanediol~0.1–0.35%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Disodium edta~0.05–0.2%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Illicium verum fruit extract~0.05–0.15%
Irritant · high
Irritation risk
High

Anise fruit extract. Used as a fragrance. Can be irritating

More about Illicium verum fruit extract
Sodium hyaluronate~0.05–0.1%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Parfum~0.01–0.05%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Ingredient list view

Water, Glycerin, Niacinamide, Alcohol, Betaine, Hydroxyethylcellulose, Carbomer, Polysorbate 80, Caprylyl glycol, Tromethamine, Allantoin, Butylene glycol, Prunus yedoensis flower extract, Prunus mume flower extract, Ethylhexylglycerin, 1,2-hexanediol, Propanediol, Disodium edta, Illicium verum fruit extract, Sodium hyaluronate, Parfum

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
Skin79Seoul Girl's Beauty Secret Brightening Sheet MaskYOUR PRODUCTSTARSKIN100% Camellia Brightening MasknumbuzinNo.1 Pantothenic B5 Hyaluronic Active Clear MaskThank You FarmerSaccharomy Brightening Star Mask
Match—100%100%100%
Price—$13.31$3.42$3.00
Shared key ingredients—4 of 55 of 54 of 5
Key difference—PanthenolMadecassosideAdenosine
Irritancy High Medium Medium Medium
Drying alcohol Contains drying alcohol ———
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Skin79 Seoul Girl's Beauty Secret Brightening Sheet Mask
Skin79Seoul Girl's Beauty Secret Brightening Sheet Mask

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As an Amazon Associate, WIMJ earns from qualifying purchases.