Secret Key

Secret Key Hyaluron Soft Micro Peel Toner - Korean Beauty Toners

Name: Secret Key - Hyaluron Soft Micro Peel Toner - Korean Beauty Toners
Brand: Secret Key

Efficacy100/100IrritancyHigh

See all ingredients

Works for

Exfoliation

Glycolic acid, Tartaric acid + 1 more

Works well

What the product description says

“Hyaluron Soft Micro Peel Toner - Korean Beauty Toners”

Source: Lila Beauty

This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: glycolic acid.

Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~0.95–1.15%

Tartaric acidKey activeEffect: MediumAn AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levels~0.55–0.85%

Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.7–1.05%

Moisturizing

Panthenol, Glycerin + 18 more

Works well

What the product description says

“Secret Key Hyaluron Soft Micro Peel Toner works to moisturize the skin while removing dead skin.”

Source: Lila Beauty

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. 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. The following ingredients in this product do the job: glycerin, hydrolyzed collagen.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: hydrolyzed collagen, persea gratissima fruit extract.

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

PanthenolHero· HumectantEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.15–0.3%

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~4–4.9%

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~2.3–2.8%

Hydrolyzed collagenKey active· Humectant, EmollientEffect: HighA typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin~0.45–0.65%

Saccharum officinarum extractKey activeEffect: HighSugar extract that helps attract water to the upper layer of the skin~0.45–0.7%

Simmondsia chinensis seed extractKey active· EmollientEffect: HighPlant oil that helps soften the upper layer of the skin~0.4–0.65%

Vitis vinifera fruit extractKey activeEffect: MediumA plant extract that helps attract water to the upper layer of the skin. It might be helpful in neutralizing free radicals in skin, but is less potent than the extract from the seeds~0.4–0.65%

Persea gratissima fruit extractKey active· EmollientEffect: High~0.3–0.55%

Sodium pcaKey active· HumectantEffect: HighNaturally present in skin and helps to attract water to its upper layer~0.25–0.4%

TrehaloseKey active· HumectantEffect: HighA sugar that attracts water to the upper layer of the skin~0.2–0.4%

Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.15–0.25%

Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~3.1–3.8%

Propylene glycol· HumectantEffect: LowHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating~1.4–1.7%

Sorbitol· HumectantEffect: LowHelps attract water to the upper layer of the skin and improves the product texture~0.2–0.35%

Aloe barbadensis leaf extractEffect: Low, below effective doseTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.35–0.65%

Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.1–0.2%

Pyrus malus fruit extractUnder-dosedCan have some moisturizing properties due to its sugar content~0.45–0.7%

Centella asiatica extractUnder-dosedA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.~0.2–0.35%

Evens skin tone

Side benefit · Glycolic acid, Lactic acid

Works well

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

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.

Anti-aging

Side benefit · Glycolic acid, Sodium salicylate + 3 more

Works well

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

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.

Sodium salicylateEffect: LowThe salt of salicylic acid. Helps exfoliate the upper layer of the skin. Can also work to preserve cosmetic products~0.25–0.5%

Anti-oxidation

Side benefit · Tartaric acid, Vitis vinifera fruit extract + 6 more

May help

This product contains antioxidants (tartaric acid) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

Vitis vinifera fruit extractEffect: LowA plant extract that helps attract water to the upper layer of the skin. It might be helpful in neutralizing free radicals in skin, but is less potent than the extract from the seeds~0.4–0.65%

Chrysanthemum morifolium flower extractEffect: LowUsed as a fragrance. Might have some anti-oxidant effect~0.3–0.55%

Hippophae rhamnoides fruit extractEffect: LowA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking~0.3–0.6%

Sambucus nigra fruit extractEffect: LowA plant extract that may contain a small amount of essential oils. Might be helpful in neutralizing free radicals in skin~0.3–0.55%

Camellia sinensis leaf waterEffect: LowGreen tea leaf water. Might have some minimal anti-oxidant effect~0.05–0.1%

Pyrus malus fruit extractEffect: Low, below effective doseCan have some moisturizing properties due to its sugar content~0.45–0.7%

Can it cause trouble?

Irritancy

3 strong irritants: Citrus limon fruit extract, Chrysanthemum morifolium flower extract + 1 more — patch-test recommended

High risk

We flagged 19 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~1.4–1.7%est.

Glycolic acidAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acidHigh~0.95–1.15%est.

Citrus limon fruit extractUsed as a fragrance. Can be irritating and cause photosensitivityHigh~0.5–0.75%est.

Anthemis nobilis flower extractA plant extract that one one hand, can contain compounds that can help calm down skin irritation, but, on the other hand, its other compounds (especially fragrant ones) can themselves be irritatingHigh~0.25–0.5%est.

Sambucus nigra fruit extractA plant extract that may contain a small amount of essential oils. Might be helpful in neutralizing free radicals in skinHigh~0.3–0.55%est.

Chrysanthemum morifolium flower extractUsed as a fragrance. Might have some anti-oxidant effectHigh~0.3–0.55%est.

Melaleuca alternifolia leaf water—High~0.05–0.15%est.

MethylpropanediolHelps dissolve other ingredients in a formulationMedium~5.8–7%est.

Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~3.1–3.8%est.

Sodium salicylateThe salt of salicylic acid. Helps exfoliate the upper layer of the skin. Can also work to preserve cosmetic productsMedium~0.25–0.5%est.

Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~1.1–1.4%est.

Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~0.7–1.05%est.

Tartaric acidAn AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levelsMedium~0.55–0.85%est.

Pyrus malus fruit extractCan have some moisturizing properties due to its sugar contentMedium~0.45–0.7%est.

Vitis vinifera fruit extractA plant extract that helps attract water to the upper layer of the skin. It might be helpful in neutralizing free radicals in skin, but is less potent than the extract from the seedsMedium~0.4–0.65%est.

Hippophae rhamnoides fruit extractA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lackingMedium~0.3–0.6%est.

Aloe barbadensis leaf extractTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~0.35–0.65%est.

Centella asiatica extractA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.Medium~0.2–0.35%est.

Aloe barbadensis leaf juiceTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~0.1–0.2%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~45–55%

Formula

Irritation risk: Low

Plain old water

More about Water

Methylpropanediol~5.8–7%

Irritant · medium

Irritation risk: Medium

Helps dissolve other ingredients in a formulation

More about Methylpropanediol

Glycerin~4–4.9%

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

Pentylene glycol~3.1–3.8%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol

Sodium hyaluronate~2.3–2.8%

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

Hydroxyethylcellulose~1.9–2.4%

Formula

Irritation risk: Low

Used to thicken product formulations and create gel-like textures

More about Hydroxyethylcellulose

Sodium salicylate~0.25–0.5%

Irritant · medium

Irritation risk: Medium

Works for

Anti-aging

The salt of salicylic acid. Helps exfoliate the upper layer of the skin. Can also work to preserve cosmetic products

More about Sodium salicylate

Propylene glycol~1.4–1.7%

Irritant · high

Irritation risk: High

Works for

Moisturizing

Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating

More about Propylene glycol

Citric acid~1.1–1.4%

Irritant · medium

Irritation risk: Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid

Glycolic acid~0.95–1.15%

Key activeIrritant · high

Irritation risk: High

Works for

ExfoliationEvens skin toneAnti-agingAnti-blemish

An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid

More about Glycolic acid

Lactic acid~0.7–1.05%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Evens skin toneMoisturizingExfoliationAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid

Malic acid~0.6–0.9%

Formula

Irritation risk: Low

Helps adjust the product pH

More about Malic acid

Tartaric acid~0.55–0.85%

Key activeIrritant · medium

Irritation risk: Medium

Works for

ExfoliationAnti-oxidationMoisturizing

An AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levels

More about Tartaric acid

Citrus limon fruit extract~0.5–0.75%

Irritant · high

Irritation risk: High

Used as a fragrance. Can be irritating and cause photosensitivity

More about Citrus limon fruit extract

Pyrus malus fruit extract~0.45–0.7%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

MoisturizingAnti-oxidation

Can have some moisturizing properties due to its sugar content

More about Pyrus malus fruit extract

Saccharum officinarum extract~0.45–0.7%

Key active

Irritation risk: Low

Works for

Moisturizing

Sugar extract that helps attract water to the upper layer of the skin

More about Saccharum officinarum extract

Vaccinium myrtillus seed oil~0.45–0.7%

Formula

Irritation risk: Low

More about Vaccinium myrtillus seed oil

Vitis vinifera fruit extract~0.4–0.65%

Key activeIrritant · medium

Irritation risk: Medium

Works for

MoisturizingAnti-oxidation

A plant extract that helps attract water to the upper layer of the skin. It might be helpful in neutralizing free radicals in skin, but is less potent than the extract from the seeds

More about Vitis vinifera fruit extract

Hydrolyzed collagen~0.45–0.65%

Key active

Irritation risk: Low

Works for

Moisturizing

A typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin

More about Hydrolyzed collagen

Simmondsia chinensis seed extract~0.4–0.65%

Key active

Irritation risk: Low

Works for

Moisturizing

Plant oil that helps soften the upper layer of the skin

More about Simmondsia chinensis seed extract

Hippophae rhamnoides fruit extract~0.3–0.6%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

A plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking

More about Hippophae rhamnoides fruit extract

Juglans regia seed extract~0.3–0.55%

Formula

Irritation risk: Low

More about Juglans regia seed extract

Persea gratissima fruit extract~0.3–0.55%

Key active

Irritation risk: Low

Works for

Moisturizing

More about Persea gratissima fruit extract

Aloe barbadensis leaf extract~0.35–0.65%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf extract

Anthemis nobilis flower extract~0.25–0.5%

Irritant · high

Irritation risk: High

Works for

Reduces irritationAnti-inflammatory

A plant extract that one one hand, can contain compounds that can help calm down skin irritation, but, on the other hand, its other compounds (especially fragrant ones) can themselves be irritating

More about Anthemis nobilis flower extract

Urtica dioica extract~0.3–0.55%

Formula

Irritation risk: Low

More about Urtica dioica extract

Sambucus nigra fruit extract~0.3–0.55%

Irritant · high

Irritation risk: High

Works for

Anti-oxidation

A plant extract that may contain a small amount of essential oils. Might be helpful in neutralizing free radicals in skin

More about Sambucus nigra fruit extract

Chrysanthemum morifolium flower extract~0.3–0.55%

Irritant · high

Irritation risk: High

Works for

Anti-oxidation

Used as a fragrance. Might have some anti-oxidant effect

More about Chrysanthemum morifolium flower extract

Vitex trifolia fruit extract~0.3–0.55%

Formula

Irritation risk: Low

More about Vitex trifolia fruit extract

Thuja occidentalis leaf extract~0.25–0.45%

Formula

Irritation risk: Low

More about Thuja occidentalis leaf extract

Cnidium officinale root extract~0.25–0.5%

Formula

Irritation risk: Low

More about Cnidium officinale root extract

Angelica dahurica root extract~0.25–0.5%

Formula

Irritation risk: Low

More about Angelica dahurica root extract

Asarum sieboldii root extract~0.25–0.45%

Formula

Irritation risk: Low

More about Asarum sieboldii root extract

Sodium pca~0.25–0.4%

Key active

Irritation risk: Low

Works for

Moisturizing

Naturally present in skin and helps to attract water to its upper layer

More about Sodium pca

Trehalose~0.2–0.4%

Key active

Irritation risk: Low

Works for

Moisturizing

A sugar that attracts water to the upper layer of the skin

More about Trehalose

Sorbitol~0.2–0.35%

Formula

Irritation risk: Low

Works for

Moisturizing

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

More about Sorbitol

Panthenol~0.15–0.3%

Hero · Moisturizing

Irritation risk: Low

Works for

MoisturizingReduces rednessReduces irritation

Helps attract water to the upper layer of the skin and can help improve skin barrier function

More about Panthenol

Hydrolyzed hyaluronic acid~0.15–0.25%

Key active

Irritation risk: Low

Works for

Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid

Centella asiatica extract~0.2–0.35%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Reduces irritationAnti-inflammatoryReduces rednessMoisturizingAnti-agingAnti-oxidationAnti-blemish

A plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.

More about Centella asiatica extract

Aloe barbadensis leaf juice~0.1–0.2%

Irritant · medium

Irritation risk: Medium

Works for

MoisturizingAntibacterialReduces irritationReduces rednessAnti-inflammatoryAnti-blemishAnti-aging

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf juice

Melaleuca alternifolia leaf water~0.05–0.15%

Irritant · high

Irritation risk: High

More about Melaleuca alternifolia leaf water

Camellia sinensis leaf water~0.05–0.1%

Formula

Irritation risk: Low

Works for

Anti-oxidation

Green tea leaf water. Might have some minimal anti-oxidant effect

More about Camellia sinensis leaf water

Ingredient list view

Water, Methylpropanediol, Glycerin, Pentylene glycol, Sodium hyaluronate, Hydroxyethylcellulose, Sodium salicylate, Propylene glycol, Citric acid, Glycolic acid, Lactic acid, Malic acid, Tartaric acid, Citrus limon fruit extract, Pyrus malus fruit extract, Saccharum officinarum extract, Vaccinium myrtillus seed oil, Vitis vinifera fruit extract, Hydrolyzed collagen, Simmondsia chinensis seed extract, Hippophae rhamnoides fruit extract, Juglans regia seed extract, Persea gratissima fruit extract, Aloe barbadensis leaf extract, Anthemis nobilis flower extract, Urtica dioica extract, Sambucus nigra fruit extract, Chrysanthemum morifolium flower extract, Vitex trifolia fruit extract, Thuja occidentalis leaf extract, Cnidium officinale root extract, Angelica dahurica root extract, Asarum sieboldii root extract, Sodium pca, Trehalose, Sorbitol, Panthenol, Hydrolyzed hyaluronic acid, Centella asiatica extract, Aloe barbadensis leaf juice, Melaleuca alternifolia leaf water, Camellia sinensis leaf water

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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
	Secret KeyHyaluron Soft Micro Peel Toner - Korean Beauty TonersYOUR PRODUCT	HanskinHyaluron Exfoliating AHA Treatment	Beauty DropsAHA 30% + BHA 2% Peeling	Geek GorgeousSmooth Out Liquid
Match	—	58%	54%	54%
Price	—	$27.00	—	$39.99
Shared key ingredients	—	7 of 14	5 of 14	4 of 14
Key difference	—	Sodium Acetylated Hyaluronate	Salicylic Acid	Anhydroxylitol
Irritancy	High	Medium	Medium	Low
Drying alcohol	—	—	—	—
	View product	Shop	Shop	Shop

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Product summary

"Secret Key - Hyaluron Soft Micro Peel Toner - Korean Beauty Toners" is effective for: Anti-aging, Exfoliation and Evens skin tone

This product could be helpful for: Moisturizing, but its actives are not the most effective or are not well-studied.

Ingredient callouts

This product contains acids (lactic acid 0.70% - 1.05% and glycolic acid 0.95% - 1.15%). Their concentration is low, and they will not have a strong exfoliating effect. Instead, they work to support the skin natural acid mantle and to attract water (as humectants). Lactic acid is particularly good in attracting water to the upper layer of the skin and improving the skin barrier.
Humectants (hydrolyzed hyaluronic acid 0.15% - 0.25%, trehalose 0.20% - 0.40%, sodium pca 0.25% - 0.40%, hydrolyzed collagen 0.45% - 0.65%, sodium hyaluronate 2.30% - 2.80% and glycerin 4.00% - 4.90%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.