Kat Burki Nutrient C Eye Cream

Kat Burki Nutrient C Eye Cream

Efficacy100/100IrritancyHigh
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Works for

2 of 2 advertised claims delivered

Anti-aging
6 ingredients credited for this claim
Strong support
What the product description says
“A rich, nourishing eye cream with vitamin C specifically designed for the delicate eye area.”
Source: Feelunique

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

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

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.

RetinolHeroEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating~0.4–0.95%
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.~6–9%
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~2–3%
NiacinamideUnder-dosedEffect: HighIs 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~0.9–1.35%
Sodium ascorbyl phosphateEffect: Low, below effective doseA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C~1.1–1.6%
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~0.5–1.1%
Moisturizing
8 ingredients credited for this claim
Strong support
What the product description says
“Benefits Hydrates, strengthens and brightens and relieves puffiness in the entire eye area.”
Source: Feelunique

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, aloe barbadensis extract.

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.

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

Rosa canina seed oilKey activeEffect: HighA plant oil that helps soften the upper layer of the skin. It might have anti-oxidant properties. Might help reduce inflammation in skin and help against blemishes~1.3–1.9%
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~0.2–0.8%
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.~6–9%
PanthenolHero· HumectantEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.45–1%
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~2–3%
Aloe barbadensis extract· 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~1.5–2.3%
NiacinamideUnder-dosedEffect: HighIs 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~0.9–1.35%
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~0.5–1.1%
Anti-oxidation
Not advertised by the brand · 6 ingredients credited for this claim
Strong support

This product contains antioxidants (retinol) 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 - centella asiatica extract also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

RetinolKey activeEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating~0.4–0.95%
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.~6–9%
Calendula officinalis extractEffect: LowA plant extract that might help neutralize free radicals in skin~3.8–5.6%
Rosa canina seed oilEffect: LowA plant oil that helps soften the upper layer of the skin. It might have anti-oxidant properties. Might help reduce inflammation in skin and help against blemishes~1.3–1.9%
TocopherolUnder-dosedEffect: HighPure 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~0.5–1.1%
Sodium ascorbyl phosphateUnder-dosedEffect: MediumA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C~1.1–1.6%
Evens skin tone
Not advertised by the brand · 2 ingredients credited for this claim
Strong support

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: retinol.

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.

RetinolHeroEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating~0.4–0.95%
NiacinamideUnder-dosedEffect: HighIs 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~0.9–1.35%
Exfoliation
Not advertised by the brand · 1 ingredient credited for this claim
Strong support

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: retinol.

RetinolKey activeEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating~0.4–0.95%

Can it cause trouble?

Irritancy
7 strong irritants: Arnica montana extract, Lavandula angustifolia extract + 5 more — patch-test recommended
High risk
We flagged 16 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Arnica montana extract—High~23–34%est.
Lavandula angustifolia extractUsed for fragrance and contains volatile compounds that can irritate the skinHigh~4.4–6.6%est.
Calendula officinalis extractA plant extract that might help neutralize free radicals in skinHigh~3.8–5.6%est.
Chamomilla recutita extractPlant extract that can have healing and anti-inflammatory properties. It is a potential allergen and can be irritatingHigh~2.7–4.1%est.
RetinolTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritatingHigh~0.4–0.95%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.15–0.65%est.
CitronellolA fragrance. Can be irritatingHigh1%
GeraniolA fragrance. Can be irritatingHigh~0.1–0.35%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.35%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~6–9%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~2–3%est.
Aloe barbadensis 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~1.5–2.3%est.
Rosa canina seed oilA plant oil that helps soften the upper layer of the skin. It might have anti-oxidant properties. Might help reduce inflammation in skin and help against blemishesMedium~1.3–1.9%est.
Sodium ascorbyl phosphateA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin CMedium~1.1–1.6%est.
Acrylates/c10-30 alkyl acrylate crosspolymerMaintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix togetherMedium~0.45–1%est.
EthylhexylglycerinA preservativeMedium~0.15–0.7%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
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Ingredients

Filter by role to see what each ingredient is doing.

Arnica montana extract~23–34%
Irritant · high
Centella asiatica extract~6–9%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingReduces irritationReduces rednessAnti-inflammatoryAnti-oxidationAnti-agingAnti-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
Lavandula angustifolia extract~4.4–6.6%
Irritant · high
Irritation risk
High

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

More about Lavandula angustifolia extract
Calendula officinalis extract~3.8–5.6%
Irritant · high
Irritation risk
High
Works for
Anti-oxidationAnti-inflammatory

A plant extract that might help neutralize free radicals in skin

More about Calendula officinalis extract
Matricaria recutita
Not recognized
Chamomilla recutita extract~2.7–4.1%
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
Aloe barbadensis leaf juice~2–3%
Irritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-inflammatoryAntibacterialReduces rednessReduces irritationAnti-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
Aloe barbadensis extract~1.5–2.3%
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 extract
Rosa canina seed oil~1.3–1.9%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-inflammatoryAnti-oxidation

A plant oil that helps soften the upper layer of the skin. It might have anti-oxidant properties. Might help reduce inflammation in skin and help against blemishes

More about Rosa canina seed oil
Sodium ascorbyl phosphate~1.1–1.6%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Anti-blemishAnti-oxidationAnti-aging

A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C

More about Sodium ascorbyl phosphate
Niacinamide~0.9–1.35%
Under-dosed
Irritation risk
Low
Works for
Anti-blemishAnti-agingMoisturizingEvens skin toneReduces irritationReduces rednessAntibacterialAnti-inflammatory

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
Dimethyl mea~0.55–1.35%
Formula
Irritation risk
Low
More about Dimethyl mea
Tocopherol~0.5–1.1%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationMoisturizingAnti-inflammatoryAnti-aging

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
Panthenol~0.45–1%
Hero · Moisturizing
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
(vitamin b-5), rovisome
Not recognized
Retinol~0.4–0.95%
Hero · Anti-aging, Evens skin toneIrritant · high
Irritation risk
High
Works for
Anti-oxidationEvens skin toneAnti-blemishMattifyingExfoliationAnti-aging

Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating

More about Retinol
Acrylates/c10-30 alkyl acrylate crosspolymer~0.45–1%
Irritant · medium
Irritation risk
Medium

Maintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix together

More about Acrylates/c10-30 alkyl acrylate crosspolymer
Arginine~0.2–0.8%
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
Parfum~0.15–0.65%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Ethylhexylglycerin~0.15–0.7%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Phenoxyethanol1%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Citronellol1%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

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

A fragrance. Can be irritating

More about Geraniol
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
Ingredient list view

Arnica montana extract, Centella asiatica extract, Lavandula angustifolia extract, Calendula officinalis extract, Unknown, Chamomilla recutita extract, Aloe barbadensis leaf juice, Aloe barbadensis extract, Rosa canina seed oil, Sodium ascorbyl phosphate, Niacinamide, Dimethyl mea, Tocopherol, Panthenol, Unknown, Retinol, Acrylates/c10-30 alkyl acrylate crosspolymer, Arginine, Parfum, Ethylhexylglycerin, Phenoxyethanol, Citronellol, Geraniol, Limonene

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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
Kat BurkiNutrient C Eye CreamYOUR PRODUCTSKIN 1004.Probio-Cica Bakuchiol Eye CreamBring greenTea Tree Cica Soothing CreamDERMA FACTORYRetinal 300ppm Cream
Match—53%50%50%
Price$21.78$15.75−$6.03$13.28−$8.50$12.94−$8.84
Shared key ingredients—3 of 83 of 83 of 8
Key difference—AdenosineMadecassosideRetinal
Irritancy High Medium Medium Medium
Drying alcohol————
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Product summary

Judging from the ingredient list, "Kat Burki - Nutrient C Eye Cream" works well for improving skin hydration The formulation is based on a combination of good humectants and emollients. Both are needed to increase the skin hydration level. Humectants in this product (panthenol, arginine, aloe barbadensis extract and aloe barbadensis leaf juice) help to increase the water content in the upper layer of the skin. (These ingredients do so by "capturing" water molecules from the outside air or from within the deeper layers of the skin). Emollients in this formulation (arginine) help to reduce the moisture loss from the skin. They also soften the skin surface and relieve the feeling of dryness and tightness.

Ingredient callouts

  • this moisturizer contains an effective form of Retinoids (vitamin A): retinol 0.40% - 0.95%. Retinoids are potent multitasking actives. They work to improve and prevent early signs of aging, reduce hyperpigmentation (age spots and post-acne marks), and prevent inflamed blemishes and clogged pores. The downside of Retinoids is that they can be irritating. If you are not already using a Retinoid in your routine, it is best to start slowly and apply the Retinoid product only a few times per week. If your skin tolerates it well, you can gradually increase the frequency to daily. Because of the irritation risk of Retinoids, we recommend to have another, retinoid-free moisturizer in your routine to use on the alternate days or when your skin feels dry.
  • Panthenol (pro-vitamin B5) at about 0.45% - 1.00% concentration. In this concentration, Panthenol works effectively to improve the skin barrier and reduce inflammation.
This product contains ingredients that could be beneficial, but their concentrations are too low in this formulation: vitamin e and sodium ascorbyl phosphate

Irritation risk

This moisturizer contains a bunch of common irritants, including ingredients that do not provide any known benefit for the skin. It might not be the best choice if your skin is sensitive. We assess the overall irritancy of this moisturizer to be high. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

Price

The product retails for 108.00£ in the United Kingdom and for 21.80$ in the United States.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 28 studies and safety reviews.

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Kat Burki Nutrient C Eye Cream
Kat BurkiNutrient C Eye Cream

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