K-SECRET Real Vita C Secret Ampoule

K-SECRET Real Vita C Secret Ampoule

Efficacy66/100IrritancyHigh

Works for

Evens skin tone
Ascorbic acid, Glutathione + 5 more
Works well
What the product description says
“This ampoule concentrated in pure Vitamin C fades dark spots and minimizes other types of blemishes for a radiant complexion.”
Source: Yesstyle

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

In addition, this product contains glutathione. This ingredient (ingredients) might help reduce hyperpigmentation, but the effect, if any, is likely to be small.

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually can help even out the skin tone: ferulic acid, glycyrrhiza glabra root extract, madecassoside, pinus pinaster bark extract, resveratrol.

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.

Ascorbic acidHeroEffect: 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 aging14%
GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~0.05–0.2%
Ferulic acidKey activeEffect: MediumA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.05–0.15%
MadecassosideEffect: LowAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.15–0.65%
Pinus pinaster bark extractEffect: LowA plant extract that might help neutralize free radicals and reduce hyperpigmentation, but evidence of effectiveness of topical application is lacking. It can be an INCI name for the trademarked ingredient Pycnogenol (but could also be a different type of this plant's bark extract)~0.1–0.35%
ResveratrolEffect: LowHelps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone~0.05–0.2%
Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~0.05–0.15%
Moisturizing
Madecassoside, Carnitine + 20 more
Works well
What the product description says
“It’s packed with nourishing and soothing ingredients such as aloe vera, allantoin and beta-glucan.”
Source: Yesstyle

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, glycerin.

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, carthamus tinctorius seed oil.

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

MadecassosideHeroEffect: HighAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.15–0.65%
CarnitineKey activeEffect: Medium~0.45–1.05%
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~0.35–0.85%
Tremella fuciformis sporocarp extractKey active· HumectantEffect: HighMushroom extract that helps attract water to the upper layer of the skin~0.1–0.35%
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~0.05–0.2%
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~0.05–0.15%
Beta-glucanKey activeEffect: HighHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.05–0.2%
Carthamus tinctorius seed oilKey active· EmollientEffect: HighAn emollient that helps soften the skin and might help calm down inflammation~0.05–0.25%
GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~0.05–0.2%
GlycineKey active· HumectantEffect: HighHelps to attract water to the upper layer of the skin and can help restore the skin barrier function~0.05–0.15%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.05–0.2%
AdenosineKey activeEffect: MediumMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.05–0.2%
Polyglyceryl-10 oleateKey activeEffect: MediumHelps soften the upper layer of the skin~0.05–0.25%
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~23–34%
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~1–1.6%
LysolecithinEffect: LowLecithin derivative. It helps oil and water mix together and can enhance penetration of other ingredients. It helps soften the upper layer of the skin~0.1–0.3%
Polyglyceryl-10 stearateEffect: LowHelps water and oil mix together and softens the upper layer of the skin~0.1–0.3%
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~0.05–0.2%
Caprylic/capric triglycerideUnder-dosedA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~0.1–0.35%
Centella asiatica extractUnder-dosedA 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.~0.05–0.3%
PanthenolUnder-dosedHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.05–0.15%
AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.01–0.05%
Anti-blemish
Carnitine, Salix alba bark extract + 3 more
Not delivered
What the product description says
“This ampoule concentrated in pure Vitamin C fades dark spots and minimizes other types of blemishes for a radiant complexion.”
Source: Yesstyle

Effective ingredients missing or their concentration is too low.

CarnitineEffect: Low~0.45–1.05%
Salix alba bark extractEffect: LowA plant extract that can help neutralize free radicals in skin. It contains a compound salicin that can theoretically be converted into salicylic acid that, in turn, helps reduce inflammation in skin, but the evidence of effectiveness in skin is lacking and the extract is usually not used in a concentration that would enable an exfoliating effect~0.1–0.35%
Beta-glucanEffect: LowHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.05–0.2%
Centella asiatica extractEffect: Low, below effective doseA 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.~0.05–0.3%
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~0.01–0.05%
Anti-oxidation
Not advertised by the brand · Ascorbic acid, Madecassoside + 21 more
Works well

This product contains antioxidants (ascorbic acid, astaxanthin, ferulic acid, glutathione, madecassoside, resveratrol, 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 - cornus officinalis fruit extract, haematococcus pluvialis extract, pinus pinaster bark extract also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

Ascorbic acidHeroEffect: 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 aging14%
MadecassosideKey activeEffect: HighAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.15–0.65%
Pinus pinaster bark extractKey activeEffect: MediumA plant extract that might help neutralize free radicals and reduce hyperpigmentation, but evidence of effectiveness of topical application is lacking. It can be an INCI name for the trademarked ingredient Pycnogenol (but could also be a different type of this plant's bark extract)~0.1–0.35%
ResveratrolKey activeEffect: HighHelps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone~0.05–0.2%
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~0.05–0.2%
AstaxanthinKey activeEffect: HighHelps neutralize free radicals in skin and might help to calm down inflammation~0.05–0.2%
Ferulic acidKey activeEffect: HighA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.05–0.15%
GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~0.05–0.2%
Cornus officinalis fruit extractKey activeEffect: MediumA plant extract that contains anti-oxidants. It might help to neutralize free radicals in skin. Can be used to help preserve the product formulation~0.05–0.15%
Haematococcus pluvialis extractKey activeEffect: MediumGreen algae extract that might contain antioxidant astaxanthin~0.05–0.15%
Hippophae rhamnoides fruit extractEffect: LowA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking31%
Capsicum annuum fruit extractEffect: LowPepper extract. Might be able to help neutralize free radicals~0.1–0.3%
Tremella fuciformis sporocarp extractEffect: LowMushroom extract that helps attract water to the upper layer of the skin~0.1–0.35%
Salix alba bark extractEffect: LowA plant extract that can help neutralize free radicals in skin. It contains a compound salicin that can theoretically be converted into salicylic acid that, in turn, helps reduce inflammation in skin, but the evidence of effectiveness in skin is lacking and the extract is usually not used in a concentration that would enable an exfoliating effect~0.1–0.35%
Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~0.05–0.15%
CaffeineEffect: LowMight be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes~0.05–0.1%
Beta-glucanEffect: LowHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.05–0.2%
Carthamus tinctorius seed oilEffect: LowAn emollient that helps soften the skin and might help calm down inflammation~0.05–0.25%
Myrciaria dubia fruit extractEffect: LowA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking~0.05–0.15%
Vaccinium myrtillus fruit extractEffect: LowA plant extract that might help neutralize free radicals in skin, but research on its efficacy in skin is lacking~0.05–0.2%
AdenosineEffect: LowMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.05–0.2%
TocopherolUnder-dosedPure 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~0.05–0.2%
Centella asiatica extractUnder-dosedA 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.~0.05–0.3%
Anti-aging
Not advertised by the brand · Ascorbic acid, Madecassoside + 8 more
Works well

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

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: astaxanthin, ferulic acid, madecassoside, resveratrol.

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.

Ascorbic acidHeroEffect: 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 aging14%
MadecassosideKey activeEffect: MediumAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.15–0.65%
AdenosineKey activeEffect: HighMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.05–0.2%
ResveratrolKey activeEffect: MediumHelps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone~0.05–0.2%
Ferulic acidKey activeEffect: MediumA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.05–0.15%
AstaxanthinKey activeEffect: MediumHelps neutralize free radicals in skin and might help to calm down inflammation~0.05–0.2%
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~0.05–0.2%
Beta-glucanEffect: LowHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.05–0.2%
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~0.05–0.2%
Centella asiatica extractUnder-dosedA 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.~0.05–0.3%

Can it cause trouble?

Irritancy
6 strong irritants: Ascorbic acid, Alcohol + 4 more — patch-test recommended
High risk
We flagged 30 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
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 agingHigh14%
AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~3.9–5.8%est.
Salix alba bark extractA plant extract that can help neutralize free radicals in skin. It contains a compound salicin that can theoretically be converted into salicylic acid that, in turn, helps reduce inflammation in skin, but the evidence of effectiveness in skin is lacking and the extract is usually not used in a concentration that would enable an exfoliating effectHigh~0.1–0.35%est.
Cornus officinalis fruit extractA plant extract that contains anti-oxidants. It might help to neutralize free radicals in skin. Can be used to help preserve the product formulationHigh~0.05–0.15%est.
Hydroxycinnamic acid—High~0.05–0.2%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.01–0.05%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.01–0.1%est.
HydroxycitronellalA fragrance. A likely allergen and can be irritatingHigh~0.01–0.1%est.
Hippophae rhamnoides fruit extractA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lackingMedium31%
MadecassosideAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulationsMedium~0.15–0.65%est.
Pinus pinaster bark extractA plant extract that might help neutralize free radicals and reduce hyperpigmentation, but evidence of effectiveness of topical application is lacking. It can be an INCI name for the trademarked ingredient Pycnogenol (but could also be a different type of this plant's bark extract)Medium~0.1–0.35%est.
Capsicum annuum fruit extractPepper extract. Might be able to help neutralize free radicalsMedium~0.1–0.3%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~0.05–0.3%est.
Myrciaria dubia fruit extractA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lackingMedium~0.05–0.15%est.
Vaccinium myrtillus fruit extractA plant extract that might help neutralize free radicals in skin, but research on its efficacy in skin is lackingMedium~0.05–0.2%est.
Polysorbate 60Helps oil and water mix togetherMedium~0.05–0.3%est.
ResveratrolHelps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin toneMedium~0.05–0.2%est.
GlutathioneA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skinMedium~0.05–0.2%est.
XanthophyllsA yellow colorantMedium~0.05–0.2%est.
AstaxanthinHelps neutralize free radicals in skin and might help to calm down inflammationMedium~0.05–0.2%est.
CaffeineMight be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyesMedium~0.05–0.1%est.
Glycyrrhiza glabra root extractA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicalsMedium~0.05–0.15%est.
1,2-hexanediolA preservativeMedium~0.05–0.2%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~0.1–0.35%est.
Haematococcus pluvialis extractGreen algae extract that might contain antioxidant astaxanthinMedium~0.05–0.15%est.
Polyglyceryl-10 stearateHelps water and oil mix together and softens the upper layer of the skinMedium~0.1–0.3%est.
Tetrasodium edtaHelps to stabilize the product formulationMedium~0.05–0.2%est.
Sodium metabisulfiteA preservativeMedium~0.05–0.15%est.
EthylhexylglycerinA preservativeMedium~0.01–0.05%est.
PvpHelps evenly disperse other ingredients in a formulation and create an even layer on the surface of the skinMedium~0.05–0.25%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Hippophae rhamnoides fruit extract31%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking

More about Hippophae rhamnoides fruit extract
Ascorbic acid14%
Hero · Anti-aging, Anti-oxidation, Evens skin toneIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-agingAnti-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
Butylene glycol~23–34%
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
Propanediol~3.1–4.6%
Formula
Irritation risk
Low

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

More about Propanediol
Alcohol~3.9–5.8%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
2,3-butanediol~2.7–4.1%
Formula
Irritation risk
Low
More about 2,3-butanediol
Water~2.1–3.1%
Formula
Irritation risk
Low

Plain old water

More about Water
Diethoxyethyl succinate~1.4–2.1%
Formula
Irritation risk
Low

Helps dissolve other ingredients in the formulation

More about Diethoxyethyl succinate
Bis-peg-18 methyl ether dimethyl silane~1–1.6%
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
Caragana sinica root extract~0.85–1.3%
Formula
Sambucus williamsii stem extract~0.55–1.25%
Formula
Dipropylene glycol~0.45–1.1%
Formula
Irritation risk
Low

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

More about Dipropylene glycol
Glycerin~0.35–0.85%
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
Madecassoside~0.15–0.65%
Hero · MoisturizingIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidationAnti-agingEvens skin tone

An antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations

More about Madecassoside
Ammonium glycyrrhizate~0.1–0.45%
Formula
Tremella fuciformis sporocarp extract~0.1–0.35%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidation

Mushroom extract that helps attract water to the upper layer of the skin

More about Tremella fuciformis sporocarp extract
Pinus pinaster bark extract~0.1–0.35%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationEvens skin tone

A plant extract that might help neutralize free radicals and reduce hyperpigmentation, but evidence of effectiveness of topical application is lacking. It can be an INCI name for the trademarked ingredient Pycnogenol (but could also be a different type of this plant's bark extract)

More about Pinus pinaster bark extract
Viscum album extract~0.05–0.25%
Formula
Salix alba bark extract~0.1–0.35%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatoryAnti-oxidationAnti-blemishExfoliation

A plant extract that can help neutralize free radicals in skin. It contains a compound salicin that can theoretically be converted into salicylic acid that, in turn, helps reduce inflammation in skin, but the evidence of effectiveness in skin is lacking and the extract is usually not used in a concentration that would enable an exfoliating effect

More about Salix alba bark extract
Acer nikoense bark extract~0.1–0.35%
Formula
Capsicum annuum fruit extract~0.1–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

Pepper extract. Might be able to help neutralize free radicals

More about Capsicum annuum fruit extract
Acanthopanax sessiliflorus bark extract~0.05–0.3%
Formula
Aloe vera leaf extract~0.1–0.35%
Formula
Centella asiatica extract~0.05–0.3%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Anti-inflammatoryReduces rednessMoisturizingReduces irritationAnti-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
Hordeum vulgare sprout extract~0.01–0.05%
Formula
Cucurbita pepo fruit extract~0.05–0.15%
Formula
Myrciaria dubia fruit extract~0.05–0.15%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking

More about Myrciaria dubia fruit extract
Cudrania tricuspidata fruit extract~0.05–0.3%
Formula
Rubus coreanus fruit extract~0.05–0.2%
Formula
Citrofortunella microcarpa fruit extract~0.01–0.1%
Formula
Vaccinium myrtillus fruit extract~0.05–0.2%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin, but research on its efficacy in skin is lacking

More about Vaccinium myrtillus fruit extract
Cornus officinalis fruit extract~0.05–0.15%
Key activeIrritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that contains anti-oxidants. It might help to neutralize free radicals in skin. Can be used to help preserve the product formulation

More about Cornus officinalis fruit extract
Levan~0.1–0.4%
Formula
Irritation risk
Low
More about Levan
Sodium hyaluronate~0.05–0.2%
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
Beta-glucan~0.05–0.2%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryReduces irritationAnti-agingAnti-blemishAnti-oxidation

Helps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles

More about Beta-glucan
Glycine~0.05–0.15%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to attract water to the upper layer of the skin and can help restore the skin barrier function

More about Glycine
Carnitine~0.45–1.05%
Key active
Irritation risk
Low
Works for
CleansingMattifyingMoisturizingAnti-blemish
More about Carnitine
Arginine~0.05–0.15%
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
Panthenol~0.05–0.15%
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
Polysorbate 60~0.05–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 60
Caffeic acid~0.05–0.1%
Formula
Irritation risk
Low
More about Caffeic acid
Ubiquinone~0.05–0.2%
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
Hydroxycinnamic acid~0.05–0.2%
Irritant · high
Ferulic acid~0.05–0.15%
Key active
Irritation risk
Low
Works for
Anti-oxidationAnti-agingEvens skin toneAnti-inflammatory

A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%

More about Ferulic acid
Resveratrol~0.05–0.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationAnti-agingEvens skin tone

Helps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone

More about Resveratrol
Gallic acid~0.05–0.15%
Formula
Irritation risk
Low
More about Gallic acid
Glutathione~0.05–0.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationMoisturizingEvens skin tone

A peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin

More about Glutathione
Tocopherol~0.05–0.2%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

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
Fullerenes~0.05–0.2%
Formula
Irritation risk
Low
More about Fullerenes
Xanthophylls~0.05–0.2%
Irritant · medium
Irritation risk
Medium

A yellow colorant

More about Xanthophylls
Astaxanthin~0.05–0.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationAnti-inflammatoryAnti-aging

Helps neutralize free radicals in skin and might help to calm down inflammation

More about Astaxanthin
Caffeine~0.05–0.1%
Irritant · medium
Irritation risk
Medium
Works for
De-puffingAnti-oxidation

Might be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes

More about Caffeine
Allantoin~0.01–0.05%
Under-dosed
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryReduces irritationReduces rednessAnti-blemishExfoliation

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

More about Allantoin
Octyldodeceth-16~0.05–0.2%
Formula
Irritation risk
Low
Works for
Cleansing
More about Octyldodeceth-16
Octyldodeceth-25~0.1–0.35%
Formula
Irritation risk
Low
Works for
Cleansing
More about Octyldodeceth-25
Decyltetradeceth-25~0.05–0.2%
Formula
Irritation risk
Low
Works for
Cleansing
More about Decyltetradeceth-25
Glycyrrhiza glabra root extract~0.05–0.15%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidationAnti-inflammatoryReduces rednessEvens skin toneAntibacterial

A plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals

More about Glycyrrhiza glabra root extract
Adenosine~0.05–0.2%
Key active
Irritation risk
Low
Works for
Anti-agingMoisturizingAnti-oxidation

Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)

More about Adenosine
1,2-hexanediol~0.05–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Sodium hydroxide~0.05–0.2%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Sodium carbonate~0.05–0.25%
Formula
Irritation risk
Low

Helps regulate product's pH

More about Sodium carbonate
Polyacrylate crosspolymer-6~0.05–0.2%
Formula
Ethylhexyl salicylate~0.15–0.6%
Formula
Irritation risk
Low
Works for
Sun protection

Octisalate. A UV filter. It offers some protection against the sun rays that cause sunburn (UVB), but does not protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen

More about Ethylhexyl salicylate
Caprylic/capric triglyceride~0.1–0.35%
Under-dosedIrritant · 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
Polyglyceryl-10 oleate~0.05–0.25%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Polyglyceryl-10 oleate
Haematococcus pluvialis extract~0.05–0.15%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

Green algae extract that might contain antioxidant astaxanthin

More about Haematococcus pluvialis extract
Polyglyceryl-10 stearate~0.1–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps water and oil mix together and softens the upper layer of the skin

More about Polyglyceryl-10 stearate
Lysolecithin~0.1–0.3%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Lecithin derivative. It helps oil and water mix together and can enhance penetration of other ingredients. It helps soften the upper layer of the skin

More about Lysolecithin
Tetrasodium edta~0.05–0.2%
Irritant · medium
Irritation risk
Medium

Helps to stabilize the product formulation

More about Tetrasodium edta
Sodium metabisulfite~0.05–0.15%
Irritant · medium
Irritation risk
Medium

A preservative

More about Sodium metabisulfite
Carthamus tinctorius seed oil~0.05–0.25%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidation

An emollient that helps soften the skin and might help calm down inflammation

More about Carthamus tinctorius seed oil
Ethylhexylglycerin~0.01–0.05%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Pvp~0.05–0.25%
Irritant · medium
Irritation risk
Medium

Helps evenly disperse other ingredients in a formulation and create an even layer on the surface of the skin

More about Pvp
Parfum~0.01–0.05%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Limonene~0.01–0.1%
Irritant · high
Irritation risk
High

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

More about Limonene
Hydroxycitronellal~0.01–0.1%
Irritant · high
Irritation risk
High

A fragrance. A likely allergen and can be irritating

More about Hydroxycitronellal
Ingredient list view

Hippophae rhamnoides fruit extract, Ascorbic acid, Butylene glycol, Propanediol, Alcohol, 2,3-butanediol, Water, Diethoxyethyl succinate, Bis-peg-18 methyl ether dimethyl silane, Caragana sinica root extract, Sambucus williamsii stem extract, Dipropylene glycol, Glycerin, Madecassoside, Ammonium glycyrrhizate, Tremella fuciformis sporocarp extract, Pinus pinaster bark extract, Viscum album extract, Salix alba bark extract, Acer nikoense bark extract, Capsicum annuum fruit extract, Acanthopanax sessiliflorus bark extract, Aloe vera leaf extract, Centella asiatica extract, Hordeum vulgare sprout extract, Cucurbita pepo fruit extract, Myrciaria dubia fruit extract, Cudrania tricuspidata fruit extract, Rubus coreanus fruit extract, Citrofortunella microcarpa fruit extract, Vaccinium myrtillus fruit extract, Cornus officinalis fruit extract, Levan, Sodium hyaluronate, Beta-glucan, Glycine, Carnitine, Arginine, Panthenol, Polysorbate 60, Caffeic acid, Ubiquinone, Hydroxycinnamic acid, Ferulic acid, Resveratrol, Gallic acid, Glutathione, Tocopherol, Fullerenes, Xanthophylls, Astaxanthin, Caffeine, Allantoin, Octyldodeceth-16, Octyldodeceth-25, Decyltetradeceth-25, Glycyrrhiza glabra root extract, Adenosine, 1,2-hexanediol, Sodium hydroxide, Sodium carbonate, Polyacrylate crosspolymer-6, Ethylhexyl salicylate, Caprylic/capric triglyceride, Polyglyceryl-10 oleate, Haematococcus pluvialis extract, Polyglyceryl-10 stearate, Lysolecithin, Tetrasodium edta, Sodium metabisulfite, Carthamus tinctorius seed oil, Ethylhexylglycerin, Pvp, Parfum, Limonene, Hydroxycitronellal

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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-SECRETReal Vita C Secret AmpouleYOUR PRODUCTWildfleur15% Pure Vitamin C + Xanthophyll - Marigold Brightening SerumBliv:UThe Real Vita C 20 Ampoule 12mlGoodalGreen Tangerine Vita C 27 Dark Spot Care Ampoule 16g
Match—87%81%79%
Price—$34.00$13.31$24.54
Shared key ingredients—15 of 218 of 219 of 21
Key difference—BisabololNiacinamideNiacinamide
Irritancy High High Medium High
Drying alcohol Contains drying alcohol Contains drying alcohol ——
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Product summary

"K-SECRET - Real Vita C Secret Ampoule" is effective for: Anti-aging, Evens skin tone and Moisturizing

Ingredient callouts

  • This product also contains Vitamin C (Ascorbic Acid) 3.50% - 5.20% It can be helpful in stimulating collagen production, neutralizing free radicals in skin and improving pigmentation marks. We recommend to use up this product quickly after opening: Ascorbic Acid degrades fast when it gets in contact with air and light. The moment the product turns orange, it is a sign that a significant share of the vitamin C in it is no longer effective.
  • Adenosine 0.05% - 0.20%. It is a compound that in involved in many biological processes inside the skin cells. According one high-quality clinical trial, topical Adenosine in low concentrations can somewhat help improve "deep wrinkles" - the wrinkles that appear with age in places where our faces are most dynamic (for example, on the forehead or in the corners of the eyes).
  • Actives derived from an extract of the Centella Asiatica plant (also known as Gotu Kola) - madecassoside 0.10% - 0.30% The Centella Asiatica Actives, even in low concentration, can help reduce inflammation in skin, strengthen the skin barrier and reduce photodamage. They can also help to decrease scarring.
  • Humectants (glycine 0.05% - 0.15%, sodium hyaluronate 0.05% - 0.20%, tremella fuciformis sporocarp extract 0.10% - 0.35% and glycerin 0.15% - 0.55%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Price

The product retails for 16.72$ 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 62 studies and safety reviews.

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K-SECRET Real Vita C Secret Ampoule
K-SECRETReal Vita C Secret Ampoule

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As an Amazon Associate, WIMJ earns from qualifying purchases.