SOQU Vitamin C Serum

SOQU Vitamin C Serum

Efficacy50/100IrritancyHigh

Works for

Evens skin tone
Glycyrrhiza uralensis root extract, Vigna radiata seed extract + 1 more
Not delivered

This product contains ingredients (glycyrrhiza uralensis root extract, vigna radiata seed extract) that could help reduce hyperpigmentation (for example, post-acne marks or age spots) in theory, but there is not enough evidence that they actually work.

Glycyrrhiza uralensis root extractEffect: LowLicorice root extract. Might be helpful in reducing hyperpigmentation~0.1–0.3%
Vigna radiata seed extractEffect: LowBean extract that in theory might help to reduce hyperpigmentation, but evidence of effectiveness in skin are missing~0.05–0.3%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.1–0.35%
Anti-oxidation
Not advertised by the brand · Ubiquinone, Camellia sinensis extract + 3 more
Works well

This product contains antioxidants (ubiquinone) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

The following ingredients - camellia sinensis extract also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

UbiquinoneKey activeEffect: HighCoenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen~0.3–0.75%
Camellia sinensis extractKey activeEffect: MediumTea extract. Might be helpful in neutralizing free radicals in skin~0.1–0.3%
Tocopheryl acetateEffect: Low, below effective doseA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.~0.15–0.6%
Butyrospermum parkii butterEffect: Low, below effective doseA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~0.1–0.5%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.1–0.35%
Moisturizing
Not advertised by the brand · Ceramide np, Glycerin + 18 more
Works well

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, squalane.

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

Ceramide npHero· EmollientEffect: HighA type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin~0.1–0.45%
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~2.6–3.9%
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~1.7–2.5%
UbiquinoneKey activeEffect: HighCoenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen~0.3–0.75%
SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~0.15–0.55%
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~0.15–0.6%
C12-15 alkyl benzoateKey active· EmollientEffect: MediumEnhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth~0.15–0.6%
BetaineKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and improves the product texture~0.1–0.4%
Sodium pcaKey active· HumectantEffect: HighNaturally present in skin and helps to attract water to its upper layer~0.1–0.3%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.1–0.4%
TrehaloseKey active· HumectantEffect: HighA sugar that attracts water to the upper layer of the skin~0.1–0.35%
Vigna radiata seed extractKey activeEffect: MediumBean extract that in theory might help to reduce hyperpigmentation, but evidence of effectiveness in skin are missing~0.05–0.3%
Lactobacillus/soybean ferment extractKey activeEffect: MediumA fermentation product created by bacteria Lactobacillus out of soybean. The fermented product helps to attract water to the upper layer of the skin and has anti-bacterial properties. It might be helpful in calming down inflammation and could be helpful in evening out skin tone, but studies are lacking~0.05–0.3%
Bis-peg-18 methyl ether dimethyl silane· Humectant, EmollientEffect: LowA type of silicone that helps soften the upper layer of the skin and create a nice product texture~1.3–1.9%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.6–1.35%
Olea europaea fruit extract· EmollientEffect: LowAn emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammation~0.15–0.6%
LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.15–0.6%
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~0.1–0.45%
Butyrospermum parkii butterUnder-dosedA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~0.1–0.5%
PanthenolUnder-dosedHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.05–0.3%
Anti-aging
Not advertised by the brand · Ubiquinone, Butyrospermum parkii butter + 1 more
May help

This product contains ubiquinone. This ingredient help neutralize free radicals in skin. By doing so, they might be able to prevent early signs of aging (like fine lines and wrinkles), at least to some extent. These ingredients will not be able to "reverse" signs of aging.

UbiquinoneEffect: LowCoenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen~0.3–0.75%
Butyrospermum parkii butterEffect: Low, below effective doseA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~0.1–0.5%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.1–0.35%

Can it cause trouble?

Irritancy
3 strong irritants: Alcohol denat., Ocimum basilicum flower/leaf extract + 1 more — patch-test recommended
High risk
We flagged 10 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~2–3.1%est.
Ocimum basilicum flower/leaf extractUsed as a fragrance. Canbe irritatingHigh~0.05–0.3%est.
Ascorbic acidThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of agingHigh~0.1–0.35%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.05–0.15%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.6–1.35%est.
Peg-60 hydrogenated castor oilHelps oil and water mix togetherMedium~0.45–1%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.15–0.6%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~0.1–0.45%est.
Glycyrrhiza uralensis root extractLicorice root extract. Might be helpful in reducing hyperpigmentationMedium~0.1–0.3%est.
Disodium edtaStabilizes the product formulationMedium~0.05–0.2%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
Butyrospermum parkii butterA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals3/5~0.1–0.5%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
Isopentyldiol~4.7–7.1%
Formula
Irritation risk
Low

Helps dissolve other ingredients in a formulation

More about Isopentyldiol
Dipropylene glycol~3.5–5.3%
Formula
Irritation risk
Low

Helps to dissolve other ingredients in a formulation. Slows down the rate of product drying

More about Dipropylene glycol
Glycerin~2.6–3.9%
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
Alcohol denat.~2–3.1%
Irritant · high
Irritation risk
High

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

More about Alcohol denat.
Arginine~1.7–2.5%
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
Carbomer~1.4–2.1%
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
Bis-peg-18 methyl ether dimethyl silane~1.3–1.9%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

A type of silicone that helps soften the upper layer of the skin and create a nice product texture

More about Bis-peg-18 methyl ether dimethyl silane
Phenoxyethanol~0.5–1%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Caprylyl glycol~0.6–1.35%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Peg-60 hydrogenated castor oil~0.45–1%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-60 hydrogenated castor oil
Ethil ascorbyl ether
Not recognized
Ubiquinone~0.3–0.75%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidationAnti-aging

Coenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen

More about Ubiquinone
Tocopheryl acetate~0.15–0.6%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
C12-15 alkyl benzoate~0.15–0.6%
Key active
Irritation risk
Low
Works for
Moisturizing

Enhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth

More about C12-15 alkyl benzoate
Hydrolyzed extensin~0.1–0.5%
Formula
Hydrolyzed collagen~0.15–0.6%
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
Hydrolyzed pea protein~0.15–0.55%
Formula
Lecithin~0.15–0.6%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

More about Lecithin
Olea europaea fruit extract~0.15–0.6%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammation

More about Olea europaea fruit extract
Squalane~0.15–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Butyrospermum parkii butter~0.1–0.5%
Under-dosedComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidationAnti-aging

A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals

More about Butyrospermum parkii butter
Ceramide np~0.1–0.45%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryReduces irritation

A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin

More about Ceramide np
Propane~0.1–0.35%
Formula
Irritation risk
Low
More about Propane
Aloe barbadensis leaf extract~0.1–0.45%
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
Hordeum vulgare leaf extract~0.05–0.3%
Formula
Sea
Not recognized
Water~0.1–0.3%
Formula
Irritation risk
Low

Plain old water

More about Water
Sodium pca~0.1–0.3%
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
Ocimum basilicum flower/leaf extract~0.05–0.3%
Irritant · high
Irritation risk
High

Used as a fragrance. Canbe irritating

More about Ocimum basilicum flower/leaf extract
Saccharomyces/apple fruit/honey/panax ginseng root/royal jelly/sucrose ferment filtrate~0.1–0.3%
Formula
Lactobacillus/soybean ferment extract~0.05–0.3%
Key active
Irritation risk
Low
Works for
Moisturizing

A fermentation product created by bacteria Lactobacillus out of soybean. The fermented product helps to attract water to the upper layer of the skin and has anti-bacterial properties. It might be helpful in calming down inflammation and could be helpful in evening out skin tone, but studies are lacking

More about Lactobacillus/soybean ferment extract
Vigna radiata seed extract~0.05–0.3%
Key active
Irritation risk
Low
Works for
MoisturizingEvens skin tone

Bean extract that in theory might help to reduce hyperpigmentation, but evidence of effectiveness in skin are missing

More about Vigna radiata seed extract
Glycyrrhiza uralensis root extract~0.1–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Evens skin tone

Licorice root extract. Might be helpful in reducing hyperpigmentation

More about Glycyrrhiza uralensis root extract
Camellia sinensis extract~0.1–0.3%
Key active
Irritation risk
Low
Works for
Anti-oxidation

Tea extract. Might be helpful in neutralizing free radicals in skin

More about Camellia sinensis extract
Ascorbic acid~0.1–0.35%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-agingEvens skin toneAnti-oxidation

The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging

More about Ascorbic acid
Sodium hyaluronate~0.1–0.4%
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
Betaine~0.1–0.4%
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
Trehalose~0.1–0.35%
Key active
Irritation risk
Low
Works for
Moisturizing

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

More about Trehalose
Panthenol~0.05–0.3%
Under-dosed
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
Disodium edta~0.05–0.2%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Parfum~0.05–0.15%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Ingredient list view

Water, Isopentyldiol, Dipropylene glycol, Glycerin, Alcohol denat., Arginine, Carbomer, Bis-peg-18 methyl ether dimethyl silane, Phenoxyethanol, Caprylyl glycol, Peg-60 hydrogenated castor oil, Unknown, Ubiquinone, Tocopheryl acetate, C12-15 alkyl benzoate, Hydrolyzed extensin, Hydrolyzed collagen, Hydrolyzed pea protein, Lecithin, Olea europaea fruit extract, Squalane, Butyrospermum parkii butter, Ceramide np, Propane, Aloe barbadensis leaf extract, Hordeum vulgare leaf extract, Unknown, Water, Sodium pca, Ocimum basilicum flower/leaf extract, Saccharomyces/apple fruit/honey/panax ginseng root/royal jelly/sucrose ferment filtrate, Lactobacillus/soybean ferment extract, Vigna radiata seed extract, Glycyrrhiza uralensis root extract, Camellia sinensis extract, Ascorbic acid, Sodium hyaluronate, Betaine, Trehalose, Panthenol, Disodium edta, Parfum

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Amazon USPrice as of 11/5 18:26 GMT
$18.99
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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
SOQUVitamin C SerumYOUR PRODUCTFOREOSUPERCHARGED™ Triple-Action Firming SerumSonage SkincareNMF Hyaluronic Serum X5HanskinSeven Layer Ceramide Serum
Match—62%62%62%
Price$18.99$58.99+$40.00$49.50+$30.51$14.00−$4.99
Shared key ingredients—8 of 128 of 128 of 12
Key difference—Hydroxypinacolone RetinoatePhytosphingosineAnhydroxylitol
Irritancy High Medium Medium Medium
Drying alcohol Contains drying alcohol ———
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Product summary

"SOQU - Vitamin C Serum" is effective for: Moisturizing

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

Ingredient callouts

  • This product also contains Vitamin C (Ascorbic Acid). It can be an effective active for anti-aging and evening out the skin tone, but in this product it is used for stabilizing other ingredients in the formulation. In this concentration (0.10% - 0.35%) it cannot have a noticeable benefit for the skin.
  • Ceramides (ceramide np 0.10% - 0.45%). Ceramides are a type of lipids that our skin produces itself. They are a building block of the skin's barrier. Ceramides used in skincare are synthetic or extracted from plants. They work well for softening the skin surface and "patch holes" in the skin's barrier.
  • Humectants (trehalose 0.10% - 0.35%, betaine 0.10% - 0.40%, sodium hyaluronate 0.10% - 0.40%, sodium pca 0.10% - 0.30%, hydrolyzed collagen 0.15% - 0.60%, arginine 1.70% - 2.50% and glycerin 2.60% - 3.90%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

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

As an Amazon Associate, WIMJ earns from qualifying purchases.