Kueshi

Kueshi Brightening Day Cream Raspberry Vit-C

Name: Kueshi - Brightening Day Cream Raspberry Vit-C
Brand: Kueshi

Efficacy18/100IrritancyHigh

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Works for

1 of 4 advertised claims delivered

Moisturizing

9 ingredients credited for this claim

Good support

What the product description says

“Moisturising serum Hyaluronic Acid + Vit CDeeply moisturises the skin and improves its elasticity.”

Source: N/A

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, aloe barbadensis leaf juice.

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: caprylic/capric triglyceride, simmondsia chinensis seed oil.

Vitis vinifera seed oilKey active· EmollientEffect: HighA great emollient that can also have anti-oxidant properties~0.45–1%

Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~1.1–1.7%

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%

Simmondsia chinensis seed oilKey active· Emollient, OcclusiveEffect: HighSoftens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.~2.2–3.3%

Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~1.5–2.2%

Prunus amygdalus dulcis oilKey active· EmollientEffect: MediumAn emollient that softens the skin~0.85–1.25%

Coco-caprylate/caprateKey active· EmollientEffect: MediumHelps to soften the upper layer of the skin without creating a greasy texture~1.3–1.9%

Aloe barbadensis leaf juice· HumectantEffect: LowTraditionally 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~6.5–9.7%

Camellia sinensis leaf extractEffect: Low, below effective doseCan 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~0.35–0.85%

Anti-aging

4 ingredients credited for this claim

Weak support

Effective ingredients missing or their concentration is too low.

Aloe barbadensis leaf juiceEffect: LowTraditionally 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~6.5–9.7%

Prunus amygdalus dulcis oilEffect: LowAn emollient that softens the skin~0.85–1.25%

Ascorbic acidUnder-dosedEffect: HighThe 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~0.2–0.75%

Evens skin tone

2 ingredients credited for this claim

Weak support

Effective ingredients missing or their concentration is too low

Anti-blemish

2 ingredients credited for this claim

Weak support

Effective ingredients missing or their concentration is too low.

Can it cause trouble?

Irritancy

5 strong irritants: Thymus vulgaris flower/leaf extract, Parfum + 3 more — patch-test recommended

High risk

We flagged 14 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

Thymus vulgaris flower/leaf extractPlant extract that has some anti-bacterial properties. Can be used as a fragrance. Can be irritatingHigh~0.3–0.75%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~0.2–0.75%est.

ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.05–0.25%est.

LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.05–0.2%est.

CitronellolA fragrance. Can be irritatingHigh~0.05–0.1%est.

CitralA fragrance with a lemon scent. A likely irritantHigh~0.01–0.1%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~6.5–9.7%est.

Isoamyl cocoateHelps oil and water mix together and works as a cleansing agentMedium~2.5–3.8%est.

Simmondsia chinensis seed oilSoftens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.Medium~2.2–3.3%est.

Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~1.1–1.7%est.

Rubus idaeus fruit extractA fruit extract that might have some anti-oxidant properties but evidence of effectiveness in skin is lackingMedium~0.45–1.1%est.

Vitis vinifera seed oilA great emollient that can also have anti-oxidant propertiesMedium~0.45–1%est.

Dehydroacetic acidA preservativeMedium~0.1–0.4%est.

Potassium sorbateA preservativeMedium~0.05–0.3%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

Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~1.5–2.2%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

Aloe barbadensis leaf juice~6.5–9.7%

Irritant · medium

Irritation risk: Medium

Works for

MoisturizingReduces rednessReduces irritationAntibacterialAnti-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

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

Isoamyl cocoate~2.5–3.8%

Irritant · medium

Irritation risk: Medium

Helps oil and water mix together and works as a cleansing agent

More about Isoamyl cocoate

Simmondsia chinensis seed oil~2.2–3.3%

Key activeIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.

More about Simmondsia chinensis seed oil

Polyglyceryl-3 dicitrate/stearate~1.7–2.5%

Formula

Irritation risk: Low

Works for

Cleansing

More about Polyglyceryl-3 dicitrate/stearate

Cetearyl alcohol~1.5–2.2%

Key activeComedogenic 2/5

Irritation risk: Low
Comedogenicity: 2/5

Works for

CleansingMoisturizing

A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture

More about Cetearyl alcohol

Coco-caprylate/caprate~1.3–1.9%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps to soften the upper layer of the skin without creating a greasy texture

More about Coco-caprylate/caprate

Caprylic/capric triglyceride~1.1–1.7%

Key activeIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride

Prunus amygdalus dulcis oil~0.85–1.25%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-oxidationAnti-aging

An emollient that softens the skin

More about Prunus amygdalus dulcis oil

Rubus idaeus fruit extract~0.45–1.1%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

A fruit extract that might have some anti-oxidant properties but evidence of effectiveness in skin is lacking

More about Rubus idaeus fruit extract

Vitis vinifera seed oil~0.45–1%

Key activeIrritant · medium

Irritation risk: Medium

Works for

MoisturizingAnti-oxidation

A great emollient that can also have anti-oxidant properties

More about Vitis vinifera seed oil

Camellia sinensis leaf extract~0.35–0.85%

Formula

Irritation risk: Low

Works for

Anti-oxidationAntibacterialAnti-agingMoisturizingAnti-blemishEvens 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

Thymus vulgaris flower/leaf extract~0.3–0.75%

Irritant · high

Irritation risk: High

Works for

Antibacterial

Plant extract that has some anti-bacterial properties. Can be used as a fragrance. Can be irritating

More about Thymus vulgaris flower/leaf extract

Ascorbic acid~0.2–0.75%

Under-dosedIrritant · high

Irritation risk: High

Works for

Anti-oxidationEvens skin toneAnti-aging

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

Propanediol~0.15–0.65%

Formula

Irritation risk: Low

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

More about Propanediol

Xanthan gum~0.15–0.55%

Formula

Irritation risk: Low

Works for

Cleansing

Used to create a thicker product consistency

More about Xanthan gum

Dehydroacetic acid~0.1–0.4%

Irritant · medium

Irritation risk: Medium

A preservative

More about Dehydroacetic acid

Sodium benzoate~0.1–0.3%

Formula

Irritation risk: Low

A preservative

More about Sodium benzoate

Potassium sorbate~0.05–0.3%

Irritant · medium

Irritation risk: Medium

A preservative

More about Potassium sorbate

Parfum~0.05–0.25%

Irritant · high

Irritation risk: High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum

Limonene~0.05–0.2%

Irritant · high

Irritation risk: High

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

More about Limonene

Citronellol~0.05–0.1%

Irritant · high

Irritation risk: High

A fragrance. Can be irritating

More about Citronellol

Citral~0.01–0.1%

Irritant · high

Irritation risk: High

A fragrance with a lemon scent. A likely irritant

More about Citral

Ingredient list view

Water, Aloe barbadensis leaf juice, Glycerin, Isoamyl cocoate, Simmondsia chinensis seed oil, Polyglyceryl-3 dicitrate/stearate, Cetearyl alcohol, Coco-caprylate/caprate, Caprylic/capric triglyceride, Prunus amygdalus dulcis oil, Rubus idaeus fruit extract, Vitis vinifera seed oil, Camellia sinensis leaf extract, Thymus vulgaris flower/leaf extract, Ascorbic acid, Propanediol, Xanthan gum, Dehydroacetic acid, Sodium benzoate, Potassium sorbate, Parfum, Limonene, Citronellol, Citral

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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
	KueshiBrightening Day Cream Raspberry Vit-CYOUR PRODUCT	Skin ResearchPro Hyaluronic Acid Day Cream
Match	—	51%
Price	—	$42.66
Shared key ingredients	—	5 of 5
Key difference	—	Ginkgo Biloba Leaf Extract
Irritancy	High	Medium
Drying alcohol	—	—
	View product	Shop

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 4 studies and safety reviews.

1
Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
2
Safety Assessment of Alkyl Esters as Used in Cosmeticscir-safety.org
3
Anti-Inflammatory and Skin Barrier Repair Effects of Topical Application of Some Plant Oilsmdpi.com
4
4 Final Report on the Safety Assessment of Sodium Dehydroacetate and Dehydroacetic Acidjournals.sagepub.com

KueshiBrightening Day Cream Raspberry Vit-C

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