IOPE

IOPE Gluta Vitamin C Brightening Serum

Name: IOPE - Gluta Vitamin C Brightening Serum
Brand: IOPE

Efficacy100/100IrritancyHigh

See all ingredients

Works for

Evens skin tone

Ascorbic acid, 3-o-ethyl ascorbic acid + 7 more

Works well

What the product description says

“Gluta Vitamin C Brightening Serum”

Source: Soko Glam

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 acetyl glucosamine, 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: 3-o-ethyl ascorbic acid, ferulic acid, glycyrrhiza glabra root extract.

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 aging~5.3–7.9%

3-o-ethyl ascorbic acidKey activeEffect: MediumA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~1.4–2.1%

Acetyl glucosamineKey activeEffect: HighAn effective moisturizing ingredient that also has been shown to be effective in evening out the skin tone and reducing hyperpigmentation. It can help somewhat reduce wrinkles in skin~0.4–0.9%

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~0.3–0.75%

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%~0.05–0.3%

Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~0.1–0.3%

GluconolactoneUnder-dosedA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.35–0.75%

Ascorbyl tetraisopalmitateUnder-dosedA vitamin C derivative. Studies show that is might be effective in reducing hyperpigmentation, but there are no studies confirming that it is effectively converted into the bioavailable form of Vitamin C in skin. It is not clear how this derivative compares in effectiveness to the topical application of bioavailable form of vitamin C (L-ascorbic acid)~0.15–0.6%

NiacinamideUnder-dosedIs 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~0.05–0.15%

Anti-aging

Side benefit · Ascorbic acid, Acetyl glucosamine + 6 more

Works well

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

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

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.

3-o-ethyl ascorbic acidEffect: LowA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~1.4–2.1%

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~0.05–0.25%

Anti-oxidation

Side benefit · Ascorbic acid, 3-o-ethyl ascorbic acid + 9 more

Works well

This product contains antioxidants (ascorbic acid, ferulic acid, glutathione) 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 - 3-o-ethyl ascorbic acid also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

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%~0.05–0.3%

CaffeineEffect: LowMight be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes~0.8–1.25%

Achillea millefolium extractEffect: LowPlant extract that can help neutralize free radicals in skin. Can be used as a fragrance. Can be irritating~0.1–0.4%

Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~0.1–0.3%

Carthamus tinctorius seed oilEffect: LowAn emollient that helps soften the skin and might help calm down inflammation~0.01–0.1%

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~0.05–0.25%

Moisturizing

Side benefit the brand mentions · Panthenol, Acetyl glucosamine + 13 more

Works well

What the product description says

“This fast-acting formula leads to significant improvements in skin texture, with a reduction in dead skin cells by 10.72%, roughness by 8.01%, and an increase in clarity by 0.66% and moisture level by 12.15%.”

Source: Soko Glam

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, sodium hyaluronate.

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, dimethicone.

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

PanthenolHero· HumectantEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.4–1%

Acetyl glucosamineHero· HumectantEffect: HighAn effective moisturizing ingredient that also has been shown to be effective in evening out the skin tone and reducing hyperpigmentation. It can help somewhat reduce wrinkles in skin~0.4–0.9%

DimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~2.9–4.4%

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.~1–1.5%

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.35–0.8%

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%

Carthamus tinctorius seed oilKey active· EmollientEffect: HighAn emollient that helps soften the skin and might help calm down inflammation~0.01–0.1%

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~2.2–3.3%

Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~0.2–0.75%

Dextrin· HumectantEffect: LowA sugar that is used to stabilize the product formulation. Can help attract water to the upper layer of the skin~0.1–0.3%

Ascorbyl tetraisopalmitateEffect: Low, below effective doseA vitamin C derivative. Studies show that is might be effective in reducing hyperpigmentation, but there are no studies confirming that it is effectively converted into the bioavailable form of Vitamin C in skin. It is not clear how this derivative compares in effectiveness to the topical application of bioavailable form of vitamin C (L-ascorbic acid)~0.15–0.6%

Can it cause trouble?

Irritancy

3 strong irritants: Parfum, Gardenia florida fruit extract + 1 more — patch-test recommended

High risk

We flagged 13 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 agingHigh~5.3–7.9%est.

3-o-ethyl ascorbic acidA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in productsHigh~1.4–2.1%est.

ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.15–0.55%est.

Gardenia florida fruit extractUsed as a fragrance. Can be irritating.High~0.1–0.3%est.

Achillea millefolium extractPlant extract that can help neutralize free radicals in skin. Can be used as a fragrance. Can be irritatingHigh~0.1–0.4%est.

CaffeineMight be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyesMedium~0.8–1.25%est.

GluconolactoneA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicalsMedium~0.35–0.75%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~0.3–0.75%est.

Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~0.2–0.75%est.

Ascorbyl tetraisopalmitateA vitamin C derivative. Studies show that is might be effective in reducing hyperpigmentation, but there are no studies confirming that it is effectively converted into the bioavailable form of Vitamin C in skin. It is not clear how this derivative compares in effectiveness to the topical application of bioavailable form of vitamin C (L-ascorbic acid)Medium~0.15–0.6%est.

Sodium sulfiteHelps stabilize and preserve a product formulationMedium~0.1–0.2%est.

Disodium edtaStabilizes the product formulationMedium~0.1–0.4%est.

Glycyrrhiza glabra root extractA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicalsMedium~0.1–0.3%est.

Comedogenic

Clean of flagged comedogenic ingredients

None flagged

Alternatives

Cheaper, or higher on efficacy

COSRX Advanced The Vitamin C 23 Serum

Cheaper95% match

$19.99

LANEIGE Radian-C Vitamin Spot Ampoule

Cheaper85% match

$28.96

View all alternatives

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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

Ascorbic acid~5.3–7.9%

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

Tromethamine~3.8–5.6%

Formula

Irritation risk: Low

Helps adjust pH in products

More about Tromethamine

Dimethicone~2.9–4.4%

Key active

Irritation risk: Low

Works for

MoisturizingMattifying

A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish

More about Dimethicone

Butylene glycol~2.2–3.3%

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

Dipropylene glycol~1.6–2.4%

Formula

Irritation risk: Low

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

More about Dipropylene glycol

3-o-ethyl ascorbic acid~1.4–2.1%

Key activeIrritant · high

Irritation risk: High

Works for

Anti-oxidationEvens skin toneAnti-aging

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

More about 3-o-ethyl ascorbic acid

Bis-ethoxydiglycol cyclohexane 1,4-dicarboxylate~1.2–1.8%

Formula

Irritation risk: Low

More about Bis-ethoxydiglycol cyclohexane 1,4-dicarboxylate

Squalane~1–1.5%

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

Caffeine~0.8–1.25%

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

Sodium chloride~0.55–1.25%

Formula

Irritation risk: Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride

Panthenol~0.4–1%

Hero · Moisturizing

Irritation risk: Low

Works for

Reduces rednessMoisturizingReduces irritation

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

More about Panthenol

Acetyl glucosamine~0.4–0.9%

Hero · Moisturizing

Irritation risk: Low

Works for

Anti-agingEvens skin toneMoisturizingExfoliation

An effective moisturizing ingredient that also has been shown to be effective in evening out the skin tone and reducing hyperpigmentation. It can help somewhat reduce wrinkles in skin

More about Acetyl glucosamine

Sodium hyaluronate~0.35–0.8%

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

Gluconolactone~0.35–0.75%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

MoisturizingAnti-agingEvens skin toneExfoliationAnti-blemishAnti-oxidation

A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals

More about Gluconolactone

Glutathione~0.3–0.75%

Key activeIrritant · medium

Irritation risk: Medium

Works for

Evens skin toneMoisturizingAnti-oxidation

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

Pentylene glycol~0.2–0.75%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol

Parfum~0.15–0.55%

Irritant · high

Irritation risk: High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum

Ascorbyl tetraisopalmitate~0.15–0.6%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Anti-oxidationAnti-agingEvens skin toneMoisturizing

A vitamin C derivative. Studies show that is might be effective in reducing hyperpigmentation, but there are no studies confirming that it is effectively converted into the bioavailable form of Vitamin C in skin. It is not clear how this derivative compares in effectiveness to the topical application of bioavailable form of vitamin C (L-ascorbic acid)

More about Ascorbyl tetraisopalmitate

Xanthan gum~0.1–0.5%

Formula

Irritation risk: Low

Works for

Cleansing

Used to create a thicker product consistency

More about Xanthan gum

Sodium sulfite~0.1–0.2%

Irritant · medium

Irritation risk: Medium

Helps stabilize and preserve a product formulation

More about Sodium sulfite

Disodium edta~0.1–0.4%

Irritant · medium

Irritation risk: Medium

Stabilizes the product formulation

More about Disodium edta

Gardenia florida fruit extract~0.1–0.3%

Irritant · high

Irritation risk: High

Used as a fragrance. Can be irritating.

More about Gardenia florida fruit extract

Ferulic acid~0.05–0.3%

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

Dextrin~0.1–0.3%

Formula

Irritation risk: Low

Works for

Moisturizing

A sugar that is used to stabilize the product formulation. Can help attract water to the upper layer of the skin

More about Dextrin

Achillea millefolium extract~0.1–0.4%

Irritant · high

Irritation risk: High

Works for

Anti-oxidation

Plant extract that can help neutralize free radicals in skin. Can be used as a fragrance. Can be irritating

More about Achillea millefolium extract

Tocopherol~0.05–0.25%

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

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

Niacinamide~0.05–0.15%

Under-dosed

Irritation risk: Low

Works for

Anti-agingEvens skin toneMoisturizingAnti-blemishReduces irritationAnti-inflammatoryReduces rednessAntibacterial

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

Glycyrrhiza glabra root extract~0.1–0.3%

Irritant · medium

Irritation risk: Medium

Works for

Anti-inflammatoryReduces rednessEvens skin toneAnti-oxidationAntibacterial

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

Methyl trimethicone~0.01–0.05%

Formula

Irritation risk: Low

A type of silicone that helps create a silky product finish and dissolve other ingredients

More about Methyl trimethicone

Carthamus tinctorius seed oil~0.01–0.1%

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

Ingredient list view

Water, Ascorbic acid, Tromethamine, Dimethicone, Butylene glycol, Dipropylene glycol, 3-o-ethyl ascorbic acid, Bis-ethoxydiglycol cyclohexane 1,4-dicarboxylate, Squalane, Caffeine, Sodium chloride, Panthenol, Acetyl glucosamine, Sodium hyaluronate, Gluconolactone, Glutathione, Pentylene glycol, Parfum, Ascorbyl tetraisopalmitate, Xanthan gum, Sodium sulfite, Disodium edta, Gardenia florida fruit extract, Ferulic acid, Dextrin, Achillea millefolium extract, Tocopherol, Arginine, Niacinamide, Glycyrrhiza glabra root extract, Methyl trimethicone, Carthamus tinctorius seed oil

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Soko Glam

$49.00

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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
	IOPEGluta Vitamin C Brightening SerumYOUR PRODUCT	COSRXAdvanced The Vitamin C 23 Serum	LANEIGERadian-C Vitamin Spot Ampoule	Wildfleur15% Pure Vitamin C + Xanthophyll - Marigold Brightening Serum
Match	—	95%	85%	80%
Price	$49.00	$19.99−$29.01	$28.96−$20.04	$34.00−$15.00
Shared key ingredients	—	10 of 12	10 of 12	8 of 12
Key difference	—	Niacinamide	Niacinamide	Adenosine
Irritancy	High	Medium	High	High
Drying alcohol	—	—	—	Contains drying alcohol
	View product	Shop	Shop	Shop

More alternatives: Dermatica Vitamin C 15%: Fresh Batch Ascorbic Acid Luzern Laboratories Serum Absolut V15+

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Product summary

"IOPE - Gluta Vitamin C Brightening Serum" is effective for: Anti-aging, Evens skin tone and Moisturizing

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 (2.00% - 2.40%) it cannot have a noticeable benefit for the skin.
An effective concentration of Panthenol (pro-vitamin B5) - about 0.60% - 0.90%. Panthenol helps strengthen the skin barrier, improve hydration and reduce inflammation in skin.
Humectants (arginine 0.15% - 0.30%, sodium hyaluronate 0.55% - 0.80%, acetyl glucosamine 0.55% - 0.85% and panthenol 0.60% - 0.90%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.