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K-Glo Sheet Mask - Anti Calluses
K-Glo

K-Glo Sheet Mask - Anti Calluses

Efficacy100/100IrritancyHigh
See all ingredients

Works for

Exfoliation
Lactic acid, Urea + 2 more
Works well
What the product description says
“Designed to reveal a smoother texture, the exfoliating foot treatment claims to deliver results in 7 to 10 days.”
Source: Skinstore

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, lactic acid, salicylic acid.

Lactic acidKey activeEffect: HighAn 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)~3.3–5%
UreaKey activeEffect: MediumNaturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations~1.8–2.7%
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~1.5–2.2%
Salicylic acidKey activeEffect: HighUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)~0.9–1.35%
Moisturizing
Side benefit · Urea, Lactic acid + 5 more
Works well

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

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: urea

UreaHero· HumectantEffect: HighNaturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations~1.8–2.7%
Lactic acidKey active· HumectantEffect: HighAn 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)~3.3–5%
BetaineKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and improves the product texture~1.2–1.7%
Centella asiatica extractKey activeEffect: HighA 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.~0.45–1.1%
Propylene glycol· HumectantEffect: LowHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating~4.7–7%
Portulaca oleracea extract· HumectantEffect: LowA plant extract that has some anti-oxidant activity, but solid research is lacking. Can help attract water to the upper layer of the skin~0.5–1.1%
Camellia sinensis leaf extractEffect: LowCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.45–1.1%
Anti-aging
Side benefit · Lactic acid, Glycolic acid + 2 more
Works well

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

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: centella asiatica extract, lactic 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.

Lactic acidKey activeEffect: MediumAn 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)~3.3–5%
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~1.5–2.2%
Centella asiatica extractKey activeEffect: MediumA 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.~0.45–1.1%
Camellia sinensis leaf extractEffect: LowCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.45–1.1%
Evens skin tone
Side benefit · Lactic acid, Glycolic acid + 2 more
Works well

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

Lactic acidKey activeEffect: HighAn 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)~3.3–5%
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~1.5–2.2%
Salicylic acidEffect: LowUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)~0.9–1.35%
Camellia sinensis leaf extractEffect: LowCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.45–1.1%
Anti-oxidation
Side benefit · Camellia sinensis leaf extract, Centella asiatica extract + 1 more
May help

This product contains antioxidants (camellia sinensis leaf extract, centella asiatica extract) that can help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is some human evidence for this effect in skin, though it is smaller or less consistent than the evidence for the best antioxidants.

Camellia sinensis leaf extractKey activeEffect: MediumCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.45–1.1%
Centella asiatica extractKey activeEffect: MediumA 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.~0.45–1.1%
Portulaca oleracea extractEffect: LowA plant extract that has some anti-oxidant activity, but solid research is lacking. Can help attract water to the upper layer of the skin~0.5–1.1%

Can it cause trouble?

Irritancy
14 strong irritants: Alcohol denat., Parfum + 12 more — patch-test recommended
High risk
We flagged 26 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Alcohol denat.Produces temporary toning effect. Can help dissolve other ingredients or preserve productsHigh~23–35%est.
Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~4.7–7%est.
Isopropyl alcoholA drying alcohol. Can increase skin's sensitivity and cause dryness and irritationHigh~2.5–3.7%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~1.5–2.2%est.
Salicylic acidUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)High~0.9–1.35%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.55–1.35%est.
Rosmarinus officinalis extract—High~0.55–1.3%est.
Lavandula angustifolia extractUsed for fragrance and contains volatile compounds that can irritate the skinHigh~0.55–1.25%est.
Ocimum basilicum leaf extractUsed as a frangrance. Can be irritating. Might have some anti-bacterial propertiesHigh~0.4–0.9%est.
Salvia officinalis extract—High~0.45–1%est.
Menthol—High~0.2–0.75%est.
Hexyl cinnamalA fragrance with jasmine smell. A likely irritantHigh~0.15–0.7%est.
LinaloolA fragrance. Can be irritatingHigh~0.15–0.6%est.
Benzyl salicylateA fragrance. Is a likely irritantHigh~0.1–0.5%est.
CitronellolA fragrance. Can be irritatingHigh~0.1–0.45%est.
Butylphenyl methylpropionalA fragrance. Can trigger allergic reactions and be irritatingHigh~0.1–0.45%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.35%est.
GeraniolA fragrance. Can be irritatingHigh~0.1–0.35%est.
Raspberry ketoneUsed as a fragrance. It can reduce skin pigmentation, but it is not safe to use for these purposes in high concentrations as use of raspberry ketone and its derivative is linked to causing loss of skin pigmentation in people (leukoderma)High~0.1–0.35%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~3.3–5%est.
Peg-60 hydrogenated castor oilHelps oil and water mix togetherMedium~0.9–1.4%est.
Benzyl glycolHelps dissolve other ingredients and preserve productsMedium~0.5–1.15%est.
Portulaca oleracea extractA plant extract that has some anti-oxidant activity, but solid research is lacking. Can help attract water to the upper layer of the skinMedium~0.5–1.1%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~0.45–1.1%est.
EthylhexylglycerinA preservativeMedium~0.35–0.8%est.
Disodium edtaStabilizes the product formulationMedium~0.35–0.75%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
Alternatives
The closest match we found
Feet Mask in Fabric Exfoliating 1 Pair
Loua Feet Mask in Fabric Exfoliating 1 Pair
Closest match97% match
$5.82
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Ingredients

Filter by role to see what each ingredient is doing.

Alcohol denat.~23–35%
Irritant · high
Irritation risk
High

Produces temporary toning effect. Can help dissolve other ingredients or preserve products

More about Alcohol denat.
Water~11–17%
Formula
Irritation risk
Low

Plain old water

More about Water
Propylene glycol~4.7–7%
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
Lactic acid~3.3–5%
Key activeIrritant · medium
Irritation risk
Medium
Works for
ExfoliationEvens skin toneMoisturizingAnti-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
Isopropyl alcohol~2.5–3.7%
Irritant · high
Irritation risk
High

A drying alcohol. Can increase skin's sensitivity and cause dryness and irritation

More about Isopropyl alcohol
Urea~1.8–2.7%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingExfoliation

Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations

More about Urea
Glycolic acid~1.5–2.2%
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
Hydroxypropylcellulose~1.3–2%
Formula
Irritation risk
Low
Works for
Cleansing
More about Hydroxypropylcellulose
Betaine~1.2–1.7%
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
Salicylic acid~0.9–1.35%
Key activeIrritant · high
Irritation risk
High
Works for
Anti-inflammatoryAnti-blemishExfoliationAntibacterialEvens skin tone

Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)

More about Salicylic acid
Peg-60 hydrogenated castor oil~0.9–1.4%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-60 hydrogenated castor oil
Parfum~0.55–1.35%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Rosmarinus officinalis extract~0.55–1.3%
Irritant · high
Irritation risk
High
More about Rosmarinus officinalis extract
Lavandula angustifolia extract~0.55–1.25%
Irritant · high
Irritation risk
High

Used for fragrance and contains volatile compounds that can irritate the skin

More about Lavandula angustifolia extract
Benzyl glycol~0.5–1.15%
Irritant · medium
Irritation risk
Medium

Helps dissolve other ingredients and preserve products

More about Benzyl glycol
Portulaca oleracea extract~0.5–1.1%
Irritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidation

A plant extract that has some anti-oxidant activity, but solid research is lacking. Can help attract water to the upper layer of the skin

More about Portulaca oleracea extract
Houttuynia cordata extract~0.45–1.1%
Formula
Irritation risk
Low
More about Houttuynia cordata extract
Camellia sinensis leaf extract~0.45–1.1%
Key active
Irritation risk
Low
Works for
Anti-oxidationAntibacterialAnti-agingAnti-blemishMoisturizingEvens skin tone

Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation

More about Camellia sinensis leaf extract
Centella asiatica extract~0.45–1.1%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Reduces irritationReduces rednessMoisturizingAnti-inflammatoryAnti-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
Ocimum basilicum leaf extract~0.4–0.9%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Used as a frangrance. Can be irritating. Might have some anti-bacterial properties

More about Ocimum basilicum leaf extract
Salvia officinalis extract~0.45–1%
Irritant · high
Irritation risk
High
More about Salvia officinalis extract
Ethylhexylglycerin~0.35–0.8%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Disodium edta~0.35–0.75%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Jasminum grandiflorum leaf extract~0.3–0.75%
Formula
Irritation risk
Low
More about Jasminum grandiflorum leaf extract
Menthol~0.2–0.75%
Irritant · high
Irritation risk
High
More about Menthol
Hexyl cinnamal~0.15–0.7%
Irritant · high
Irritation risk
High

A fragrance with jasmine smell. A likely irritant

More about Hexyl cinnamal
Linalool~0.15–0.6%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Benzyl salicylate~0.1–0.5%
Irritant · high
Irritation risk
High

A fragrance. Is a likely irritant

More about Benzyl salicylate
Citronellol~0.1–0.45%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Citronellol
Butylphenyl methylpropional~0.1–0.45%
Irritant · high
Irritation risk
High

A fragrance. Can trigger allergic reactions and be irritating

More about Butylphenyl methylpropional
Limonene~0.1–0.35%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Geraniol~0.1–0.35%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Geraniol
Raspberry ketone~0.1–0.35%
Irritant · high
Irritation risk
High

Used as a fragrance. It can reduce skin pigmentation, but it is not safe to use for these purposes in high concentrations as use of raspberry ketone and its derivative is linked to causing loss of skin pigmentation in people (leukoderma)

More about Raspberry ketone
Ingredient list view

Alcohol denat., Water, Propylene glycol, Lactic acid, Isopropyl alcohol, Urea, Glycolic acid, Hydroxypropylcellulose, Betaine, Salicylic acid, Peg-60 hydrogenated castor oil, Parfum, Rosmarinus officinalis extract, Lavandula angustifolia extract, Benzyl glycol, Portulaca oleracea extract, Houttuynia cordata extract, Camellia sinensis leaf extract, Centella asiatica extract, Ocimum basilicum leaf extract, Salvia officinalis extract, Ethylhexylglycerin, Disodium edta, Jasminum grandiflorum leaf extract, Menthol, Hexyl cinnamal, Linalool, Benzyl salicylate, Citronellol, Butylphenyl methylpropional, Limonene, Geraniol, Raspberry ketone

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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
K-GloSheet Mask - Anti CallusesYOUR PRODUCTLouaFeet Mask in Fabric Exfoliating 1 PairSTARSKINMagic Hour Exfoliating Double-Layer Foot Mask SocksVT CosmeticsReedle Shot Foot Peeling Mask
Match—97%91%90%
Price—$5.82$16.60$5.97
Shared key ingredients—6 of 76 of 75 of 7
Key difference—Persea Gratissima Fruit ExtractRosemary ExtractMadecassoside
Irritancy High High High High
Drying alcohol Contains drying alcohol Contains drying alcohol Contains drying alcohol Contains drying alcohol
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 23 studies and safety reviews.

  1. 1
    Surfactants and experimental irritant contact dermatitisncbi.nlm.nih.gov
  2. 2
    Propylene Glycolpubmed.ncbi.nlm.nih.gov
  3. 3
    Skin-sensitizing and irritant properties of propylene glycolonlinelibrary.wiley.com
  4. 4
    Epidermal and dermal effects of topical lactic acidncbi.nlm.nih.gov
  5. 5
    Dual Effects of Alpha-Hydroxy Acids on the Skinpdfs.semanticscholar.org
  6. 6
    Topical urea in skincare: A reviewpubmed.ncbi.nlm.nih.gov
K-Glo Sheet Mask - Anti Calluses
K-GloSheet Mask - Anti Calluses
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