CLEARSTEM Skincare PREGAME 5-Minute AHA Mask

CLEARSTEM Skincare PREGAME 5-Minute AHA Mask

Efficacy0/100IrritancyHigh

Works for

Exfoliation
No ingredient credited for this claim
Not delivered
What the product description says
“This AHA mask is the equivalent of a facial with medium strength exfoliating power that leaves you extremely smooth.”
Source: CLEARSTEM

This product does not contain effective exfoliating ingredients. It might be able to deliver physical exfoliation, that is scrub off some of the dead cells on the surface of the skin. We do not recommend physical exfoliation, because it is not uniform (some bits of skin can get exfoliated too much while others not at all). It can also traumatize the skin and aggrevate acne and other skin conditions.

Evens skin tone
Side benefit · Alpha-arbutin, Niacinamide
Works well

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

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.

Alpha-arbutinKey activeEffect: HighMight help reduce hyperpigmentation when used regularly over a long period of time. Is more effective than beta-arbutin~0.1–0.45%
NiacinamideUnder-dosedIs 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~0.3–0.75%
Moisturizing
Side benefit · Glycerin, Vitis vinifera fruit extract + 6 more
Works

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

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).

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~4–6%
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~1.4–2.1%
Corallina officinalis extractKey activeEffect: HighRed algae extract that helps attract water to the upper layer of the skin and might contain antioxidants~0.1–0.35%
Beta-glucanKey activeEffect: HighHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.1–0.35%
Ananas sativus fruit extractEffect: LowA fruit extract that might help to attract water to the upper layer of the skin, but there is no evidence for any other benefits to the skin~1.7–2.5%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.5–1.2%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.4–1%
NiacinamideUnder-dosedIs 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~0.3–0.75%

Can it cause trouble?

Irritancy
4 strong irritants: Citrus limon fruit extract, Arnica montana flower extract + 2 more — patch-test recommended
High risk
We flagged 15 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Citrus limon fruit extractUsed as a fragrance. Can be irritating and cause photosensitivityHigh~2–3.1%est.
Arnica montana flower extractA plant extract that can be irritating. It can have some anti-bacterial properties, but there are no evidence of a beneficial effect for skinHigh~1.2–1.8%est.
PhenylpropanolHelps mask the smell of other ingredients and helps preserve the product formulationHigh~1–1.5%est.
Melia azadirachta leaf extractA plant extract that has anti-bacterial properties. Can be used to preserve the product. Can be irritatingHigh~0.3–0.7%est.
Aloe barbadensis flower extractA plant extract that might have some anti-oxidant effectHigh~0.15–0.65%est.
Ocimum sanctum leaf extractA plant extract that is rich in a fragrance compound eugenol that is a frequent allergen and can be irritating. It might also contain anti-oxidants to help neutralize free radicalsHigh~0.15–0.5%est.
Ocimum basilicum flower/leaf extractUsed as a fragrance. Canbe irritatingHigh~0.1–0.45%est.
Curcuma longa root extractA plant extract that can contain an active compound curcumin, that may have some anti-inflammatory properties when applied to the skin, but solid research is lacking and the typical concentration used in skincare products is too low. Can be an irritantHigh~0.1–0.4%est.
Ananas sativus fruit extractA fruit extract that might help to attract water to the upper layer of the skin, but there is no evidence for any other benefits to the skinMedium~1.7–2.5%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~1.4–2.1%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.5–1.2%est.
Melia azadirachta flower extractA plant extract that might be helpful to neutralize free radicals in skinMedium~0.3–0.7%est.
Coccinia indica fruit extractA plant extract that might have some anti-oxidant effect helping neutralize free radicals in skinMedium~0.2–0.7%est.
Solanum melongena fruit extractEggplant fruit extract. Might have some anti-oxidant effectMedium~0.15–0.65%est.
Alpha-arbutinMight help reduce hyperpigmentation when used regularly over a long period of time. Is more effective than beta-arbutinMedium~0.1–0.45%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Corallina officinalis extractRed algae extract that helps attract water to the upper layer of the skin and might contain antioxidants3/5~0.1–0.35%est.

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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~4–6%
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
Fruit acid
Not recognized
Bambusa vulgaris stem powder~3.7–5.6%
Formula
Passiflora quadrangularis fruit extract~2.6–3.9%
Formula
Citrus limon fruit extract~2–3.1%
Irritant · high
Irritation risk
High

Used as a fragrance. Can be irritating and cause photosensitivity

More about Citrus limon fruit extract
Ananas sativus fruit extract~1.7–2.5%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

A fruit extract that might help to attract water to the upper layer of the skin, but there is no evidence for any other benefits to the skin

More about Ananas sativus fruit extract
Vitis vinifera fruit extract~1.4–2.1%
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
Arnica montana flower extract~1.2–1.8%
Irritant · high
Irritation risk
High

A plant extract that can be irritating. It can have some anti-bacterial properties, but there are no evidence of a beneficial effect for skin

More about Arnica montana flower extract
Phenylpropanol~1–1.5%
Irritant · high
Irritation risk
High

Helps mask the smell of other ingredients and helps preserve the product formulation

More about Phenylpropanol
Propanediol~0.85–1.25%
Formula
Irritation risk
Low

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

More about Propanediol
Caprylyl glycol~0.5–1.2%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Tocopherol~0.4–1%
Formula
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Carbomer~0.35–0.85%
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
Aminomethyl propanol~0.35–0.8%
Formula
Irritation risk
Low

Used to adjust the pH in formulations

More about Aminomethyl propanol
Niacinamide~0.3–0.75%
Under-dosed
Irritation risk
Low
Works for
Evens skin toneAnti-blemishMoisturizingAnti-agingReduces irritationAnti-inflammatoryAntibacterialReduces 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
Melia azadirachta leaf extract~0.3–0.7%
Irritant · high
Irritation risk
High
Works for
AntibacterialAnti-blemish

A plant extract that has anti-bacterial properties. Can be used to preserve the product. Can be irritating

More about Melia azadirachta leaf extract
Melia azadirachta flower extract~0.3–0.7%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might be helpful to neutralize free radicals in skin

More about Melia azadirachta flower extract
Coccinia indica fruit extract~0.2–0.7%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might have some anti-oxidant effect helping neutralize free radicals in skin

More about Coccinia indica fruit extract
Solanum melongena fruit extract~0.15–0.65%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

Eggplant fruit extract. Might have some anti-oxidant effect

More about Solanum melongena fruit extract
Aloe barbadensis flower extract~0.15–0.65%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that might have some anti-oxidant effect

More about Aloe barbadensis flower extract
Ocimum sanctum leaf extract~0.15–0.5%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that is rich in a fragrance compound eugenol that is a frequent allergen and can be irritating. It might also contain anti-oxidants to help neutralize free radicals

More about Ocimum sanctum leaf extract
Ocimum basilicum flower/leaf extract~0.1–0.45%
Irritant · high
Irritation risk
High

Used as a fragrance. Canbe irritating

More about Ocimum basilicum flower/leaf extract
Curcuma longa root extract~0.1–0.4%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatory

A plant extract that can contain an active compound curcumin, that may have some anti-inflammatory properties when applied to the skin, but solid research is lacking and the typical concentration used in skincare products is too low. Can be an irritant

More about Curcuma longa root extract
Alpha-arbutin~0.1–0.45%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Evens skin tone

Might help reduce hyperpigmentation when used regularly over a long period of time. Is more effective than beta-arbutin

More about Alpha-arbutin
Beta-glucan~0.1–0.35%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryReduces irritationAnti-agingAnti-blemishAnti-oxidation

Helps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles

More about Beta-glucan
Corallina officinalis extract~0.1–0.35%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidation

Red algae extract that helps attract water to the upper layer of the skin and might contain antioxidants

More about Corallina officinalis extract
Synthetic fluorphlogopite~0.1–0.35%
Formula
Irritation risk
Low

A mineral that is used as an optical filter (makes the skin looks nicer through light reflection) and to improve the texture of cosmetic products

More about Synthetic fluorphlogopite
Titanium dioxide~0.05–0.3%
Formula
Irritation risk
Low
Works for
Sun protection

Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin

More about Titanium dioxide
Iron oxides~0.05–0.15%
Formula
Irritation risk
Low
Works for
Sun protection

An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear

More about Iron oxides
Tin oxide~0.1–0.35%
Formula
Irritation risk
Low

A colorant that can add a pearl-like appearance to the formulation

More about Tin oxide
Ingredient list view

Water, Glycerin, Unknown, Bambusa vulgaris stem powder, Passiflora quadrangularis fruit extract, Citrus limon fruit extract, Ananas sativus fruit extract, Vitis vinifera fruit extract, Arnica montana flower extract, Phenylpropanol, Propanediol, Caprylyl glycol, Tocopherol, Carbomer, Aminomethyl propanol, Niacinamide, Melia azadirachta leaf extract, Melia azadirachta flower extract, Coccinia indica fruit extract, Solanum melongena fruit extract, Aloe barbadensis flower extract, Ocimum sanctum leaf extract, Ocimum basilicum flower/leaf extract, Curcuma longa root extract, Alpha-arbutin, Beta-glucan, Corallina officinalis extract, Synthetic fluorphlogopite, Titanium dioxide, Iron oxides, Tin oxide

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CLEARSTEM
$56.00
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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
CLEARSTEM SkincarePREGAME 5-Minute AHA MaskYOUR PRODUCTnumbuzinNo.1 Pantothenic B5 Hyaluronic Active Clear MaskCOSRXThe Alpha-Arbutin Discoloration Care Hydrogel MaskskintificRose PDRN Niacinamide Glow Boost Clay Stick
Match—92%88%87%
Price$56.00$3.36−$52.64$6.00−$50.00$13.90−$42.10
Shared key ingredients—7 of 73 of 74 of 7
Key difference—MadecassosideAdenosineHydroxypinacolone Retinoate
Irritancy High Medium Medium High
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 24 studies and safety reviews.

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CLEARSTEM Skincare PREGAME 5-Minute AHA Mask
CLEARSTEM SkincarePREGAME 5-Minute AHA Mask

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.