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The Crème Shop x Sanrio Gudetama Vitamin C & AHA Fusion Sheet Mask
The Crème Shop x Sanrio

The Crème Shop x Sanrio Gudetama Vitamin C & AHA Fusion Sheet Mask

Efficacy25/100IrritancyHigh
See all ingredients

Works for

Moisturizing
Glycerin, Sodium hyaluronate + 8 more
Works
What the product description says
“Vitamin C boosts skin's hydration, resulting in a plumper, smoother, and brighter skin tone.”
Source: The Creme Shop

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: arginine, betaine.

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: arginine.

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~3.7–5.6%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~2.5–3.7%
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.~0.85–1.25%
BetaineKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and improves the product texture~0.1–0.35%
ArginineKey active· Humectant, OcclusiveEffect: HighAn amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin~0.05–0.3%
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~3.2–4.8%
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~0.35–0.85%
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~0.15–0.55%
AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.05–0.15%
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)~0.01–0.05%
Exfoliation
Glycolic acid ~0.01–0.05% + 1 more
Under-dosed
What the product description says
“AHA acts as a chemical exfoliant and helps loosen and remove dead skin cells, revealing a naturally bright complexion.”
Source: The Creme Shop

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.

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~0.05–0.15%
Glycolic acidUnder-dosedAn 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~0.01–0.05%
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)~0.01–0.05%
Evens skin tone
3-o-ethyl ascorbic acid ~0.1–0.4% + 2 more
Under-dosed
What the product description says
“Vitamin C boosts skin's hydration, resulting in a plumper, smoother, and brighter skin tone.”
Source: The Creme Shop

Effective ingredients missing or their concentration is too low

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~0.15–0.55%
3-o-ethyl ascorbic acidUnder-dosedA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.1–0.4%
Glycolic acidUnder-dosedAn 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~0.01–0.05%
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)~0.01–0.05%
Anti-oxidation
Side benefit · Centella asiatica extract, Camellia sinensis leaf extract + 4 more
May help

This product contains antioxidants (camellia sinensis leaf extract, centella asiatica extract) 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.

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.~0.85–1.25%
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~0.15–0.55%
Punica granatum fruit extractEffect: LowA fruit extract that is used to add a fragrance to the product. It might have some antioxidant properties~1.6–2.4%
Vaccinium angustifolium fruit extractEffect: LowA plant extract tha can have anti-oxidant properties, but evidence of effectiveness in skin is lacking~1.2–1.8%
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~0.35–0.85%
3-o-ethyl ascorbic acidUnder-dosedA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.1–0.4%
Anti-aging
Side benefit · Centella asiatica extract, Camellia sinensis leaf extract + 3 more
May help

This product contains centella asiatica extract. This ingredient might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.

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.~0.85–1.25%
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~0.15–0.55%
3-o-ethyl ascorbic acidEffect: Low, below effective doseA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.1–0.4%
Glycolic acidUnder-dosedAn 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~0.01–0.05%
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)~0.01–0.05%

Can it cause trouble?

Irritancy
3 strong irritants: Citrus aurantium dulcis fruit extract, Illicium verum fruit extract + 1 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
Punica granatum fruit extractA fruit extract that is used to add a fragrance to the product. It might have some antioxidant propertiesHigh~1.6–2.4%est.
Citrus aurantium dulcis fruit extractA plant extract that is used as a fragrance. Can be irritating and lead to photosensitivityHigh~1.2–1.7%est.
Chamomilla recutita extractPlant extract that can have healing and anti-inflammatory properties. It is a potential allergen and can be irritatingHigh~0.5–1.15%est.
Illicium verum fruit extractAnise fruit extract. Used as a fragrance. Can be irritatingHigh~0.15–0.65%est.
3-o-ethyl ascorbic acidA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in productsHigh~0.1–0.4%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~0.01–0.05%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.01–0.05%est.
1,2-hexanediolA preservativeMedium~1.1–1.7%est.
Vaccinium angustifolium fruit extractA plant extract tha can have anti-oxidant properties, but evidence of effectiveness in skin is lackingMedium~1.2–1.8%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~0.85–1.25%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~0.35–0.85%est.
Peg-60 hydrogenated castor oilHelps oil and water mix togetherMedium~0.1–0.4%est.
HydroxyacetophenoneUsed to increase effectiveness of preservativesMedium~0.05–0.2%est.
Disodium edtaStabilizes the product formulationMedium~0.05–0.1%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~0.01–0.05%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~3.7–5.6%
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
Butylene glycol~3.2–4.8%
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
Sodium hyaluronate~2.5–3.7%
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
1,2-hexanediol~1.1–1.7%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Punica granatum fruit extract~1.6–2.4%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A fruit extract that is used to add a fragrance to the product. It might have some antioxidant properties

More about Punica granatum fruit extract
Vaccinium angustifolium fruit extract~1.2–1.8%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract tha can have anti-oxidant properties, but evidence of effectiveness in skin is lacking

More about Vaccinium angustifolium fruit extract
Citrus aurantium dulcis fruit extract~1.2–1.7%
Irritant · high
Irritation risk
High

A plant extract that is used as a fragrance. Can be irritating and lead to photosensitivity

More about Citrus aurantium dulcis fruit extract
Centella asiatica extract~0.85–1.25%
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
Chamomilla recutita extract~0.5–1.15%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatory

Plant extract that can have healing and anti-inflammatory properties. It is a potential allergen and can be irritating

More about Chamomilla recutita extract
Portulaca oleracea extract~0.35–0.85%
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
Illicium verum fruit extract~0.15–0.65%
Irritant · high
Irritation risk
High

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

More about Illicium verum fruit extract
Camellia sinensis leaf extract~0.15–0.55%
Key active
Irritation risk
Low
Works for
AntibacterialAnti-oxidationAnti-agingMoisturizingEvens skin toneAnti-blemish

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
Chamaecyparis obtusa water~0.1–0.45%
Formula
Irritation risk
Low
More about Chamaecyparis obtusa water
3-o-ethyl ascorbic acid~0.1–0.4%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-oxidationEvens skin toneAnti-aging

A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products

More about 3-o-ethyl ascorbic acid
Peg-60 hydrogenated castor oil~0.1–0.4%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-60 hydrogenated castor oil
Betaine~0.1–0.35%
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
Carbomer~0.1–0.35%
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
Arginine~0.05–0.3%
Key active
Irritation risk
Low
Works for
Moisturizing

An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin

More about Arginine
Hydroxyacetophenone~0.05–0.2%
Irritant · medium
Irritation risk
Medium

Used to increase effectiveness of preservatives

More about Hydroxyacetophenone
Allantoin~0.05–0.15%
Under-dosed
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryAnti-blemishReduces irritationReduces rednessExfoliation

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

More about Allantoin
Disodium edta~0.05–0.1%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Lactic acid~0.01–0.05%
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
Glycolic acid~0.01–0.05%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-agingExfoliationEvens skin toneAnti-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
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, Butylene glycol, Sodium hyaluronate, 1,2-hexanediol, Punica granatum fruit extract, Vaccinium angustifolium fruit extract, Citrus aurantium dulcis fruit extract, Centella asiatica extract, Chamomilla recutita extract, Portulaca oleracea extract, Illicium verum fruit extract, Camellia sinensis leaf extract, Chamaecyparis obtusa water, 3-o-ethyl ascorbic acid, Peg-60 hydrogenated castor oil, Betaine, Carbomer, Arginine, Hydroxyacetophenone, Allantoin, Disodium edta, Lactic acid, Glycolic acid, 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
The Crème Shop x SanrioGudetama Vitamin C & AHA Fusion Sheet MaskYOUR PRODUCTNo7Protect & Perfect Intense Advanced Serum Boost Sheet MaskinnisfreeSerum-Infused Sheet Mask - Green Tea PDRN FirmingFOREOUFO and Glow Addict Mask
Match—59%59%59%
Price—$5.99$10.00$20.00
Shared key ingredients—4 of 74 of 72 of 7
Key difference—Acetyl Dipeptide-1 Cetyl EsterRetinolNiacinamide
Irritancy High Medium High Medium
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 22 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
  3. 3
    Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin careresearchgate.net
  4. 4
    The influence of alkane chain length on the skin irritation potential of 1,2-alkanediolsncbi.nlm.nih.gov
  5. 5
    Anti-Inflammatory and Neuroactive Properties of Selected Fruit Extractsliebertpub.com
  6. 6
    Safety Assessment of Citrus Fruit-Derived Ingredients as Used in Cosmeticscir-safety.org
The Crème Shop x Sanrio Gudetama Vitamin C & AHA Fusion Sheet Mask
The Crème Shop x SanrioGudetama Vitamin C & AHA Fusion Sheet Mask
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