ISANA

ISANA Power Serum Vitamin C Shot

Name: ISANA - Power Serum Vitamin C Shot
Brand: ISANA

Efficacy0/100IrritancyHigh

See all ingredients

Works for

Anti-aging

Magnesium ascorbyl phosphate, Ascorbyl palmitate

Not delivered

What the product description says

“For a refreshed and youthful-looking skin.”

Source: German Drugstore

Effective ingredients missing or their concentration is too low.

Magnesium ascorbyl phosphateEffect: Low, below effective doseA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high~2–3%

Ascorbyl palmitateEffect: Low, below effective doseBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.~0.9–1.35%

Moisturizing

Glyceryl caprylate

Not delivered

What the product description says

“The formulation with a Duo-Vitamin C Power Booster protects the skin from harmful environmental influences, has an intensive caring effect and provides valuable moisture.”

Source: German Drugstore

Does not contain good ingredients to help with moisturization.

Glyceryl caprylate· EmollientEffect: LowAn emollient that can also help water and oil mix together, as well as prevent bacteria growth in products~0.4–0.95%

Can it cause trouble?

Irritancy

4 strong irritants: Parfum, Alcohol + 2 more — patch-test recommended

High risk

We flagged 11 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~1.1–1.6%est.

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~0.15–0.65%est.

Benzyl salicylateA fragrance. Is a likely irritantHigh~0.05–0.2%est.

CitronellolA fragrance. Can be irritatingHigh~0.01–0.1%est.

Caprylyl/capryl glucosideHelps oil and water mix together. Can be used as a cleansing agentMedium~3.6–5.4%est.

Magnesium ascorbyl phosphateA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very highMedium~2–3%est.

EthylhexylglycerinA preservativeMedium~1.3–2%est.

Ascorbyl palmitateBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.Medium~0.9–1.35%est.

Sodium cocoyl glutamateHelps oil and water mix togetherMedium~0.9–1.3%est.

Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.4–0.95%est.

Trisodium ethylenediamine disuccinateUsed to improve stability of the formulationMedium~0.2–0.75%est.

Comedogenic

Clean of flagged comedogenic ingredients

None flagged

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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

Hydroxyethylcellulose~5.3–7.9%

Formula

Irritation risk: Low

Used to thicken product formulations and create gel-like textures

More about Hydroxyethylcellulose

Phenoxyethanol~0.5–1%

Formula

Irritation risk: Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol

Caprylyl/capryl glucoside~3.6–5.4%

Irritant · medium

Irritation risk: Medium

Works for

Cleansing

Helps oil and water mix together. Can be used as a cleansing agent

More about Caprylyl/capryl glucoside

Magnesium ascorbyl phosphate~2–3%

Irritant · medium

Irritation risk: Medium

Works for

Anti-agingEvens skin toneAnti-oxidation

A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high

More about Magnesium ascorbyl phosphate

Cocoyl proline~1.6–2.4%

Formula

Irritation risk: Low

More about Cocoyl proline

Ethylhexylglycerin~1.3–2%

Irritant · medium

Irritation risk: Medium

A preservative

More about Ethylhexylglycerin

Parfum~1.1–1.6%

Irritant · high

Irritation risk: High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum

Ascorbyl palmitate~0.9–1.35%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidationAnti-aging

Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.

More about Ascorbyl palmitate

Sodium cocoyl glutamate~0.9–1.3%

Irritant · medium

Irritation risk: Medium

Works for

Cleansing

Helps oil and water mix together

More about Sodium cocoyl glutamate

Polyglyceryl-6 oleate~0.5–1.2%

Formula

Irritation risk: Low

Works for

Cleansing

More about Polyglyceryl-6 oleate

Citric acid~0.4–0.95%

Irritant · medium

Irritation risk: Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid

Glyceryl caprylate~0.4–0.95%

Formula

Irritation risk: Low

Works for

CleansingMoisturizing

An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products

More about Glyceryl caprylate

Trisodium ethylenediamine disuccinate~0.2–0.75%

Irritant · medium

Irritation risk: Medium

Used to improve stability of the formulation

More about Trisodium ethylenediamine disuccinate

Alcohol~0.15–0.65%

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

Caramel~0.15–0.5%

Formula

Irritation risk: Low

More about Caramel

Sodium surfactin~0.15–0.65%

Formula

Irritation risk: Low

Works for

Cleansing

More about Sodium surfactin

Tris(tetramethylhydroxypiperidinol) citrate~0.1–0.3%

Formula

Irritation risk: Low

More about Tris(tetramethylhydroxypiperidinol) citrate

Benzyl salicylate~0.05–0.2%

Irritant · high

Irritation risk: High

A fragrance. Is a likely irritant

More about Benzyl salicylate

Sodium hydroxide~0.05–0.15%

Formula

Irritation risk: Low

Used to adjust the product's pH

More about Sodium hydroxide

Citronellol~0.01–0.1%

Irritant · high

Irritation risk: High

A fragrance. Can be irritating

More about Citronellol

Ingredient list view

Water, Hydroxyethylcellulose, Phenoxyethanol, Caprylyl/capryl glucoside, Magnesium ascorbyl phosphate, Cocoyl proline, Ethylhexylglycerin, Parfum, Ascorbyl palmitate, Sodium cocoyl glutamate, Polyglyceryl-6 oleate, Citric acid, Glyceryl caprylate, Trisodium ethylenediamine disuccinate, Alcohol, Caramel, Sodium surfactin, Tris(tetramethylhydroxypiperidinol) citrate, Benzyl salicylate, Sodium hydroxide, Citronellol