Skin Inc Supplement Bar

Skin Inc Supplement Bar Vitamin C Serum

Name: Skin Inc Supplement Bar - Vitamin C Serum
Brand: Skin Inc Supplement Bar

Efficacy50/100IrritancyMedium

See all ingredients

Works for

Moisturizing

Glycerin, Alcaligenes polysaccharides + 7 more

Works

What the product description says

“Proprietary Japanese seaweed encapsulation technology delivers nourishing ingredients, while the humectant-rich base delivers lasting hydration.”

Source: Skin Inc

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: alcaligenes polysaccharides, dipotassium glycyrrhizate.

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: alcaligenes polysaccharides, pentylene glycol.

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~2.5–3.8%

Alcaligenes polysaccharidesKey active· Humectant, EmollientEffect: HighHelp attract water to the upper layer of the skin~0.5–1.2%

Dipotassium glycyrrhizateKey active· HumectantEffect: HighA salt derived from licorice. Works as an emollient to soften the upper layer of the skin and can help calm down inflammation. Might be helpful for skin lightening~0.45–1.05%

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~2.9–4.3%

Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~2.1–3.2%

TocopherolEffect: LowPure 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~0.85–1.25%

AlginEffect: LowUsed to thicken product formulation. Can help attract water to the upper layer of the skin~0.15–0.7%

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)~0.6–1.4%

AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.4–0.9%

Anti-aging

Tocopherol, Magnesium ascorbyl phosphate + 1 more

May help

What the product description says

“Skin Inc's Vitamin C Serum combines Vitamin C, Vitamin B6 and Vitamin E to brighten and even out skin tone, help to diminish the apperance of fine lines and wrinkles, and help to reduce appearance of pore size and balance excess oil.”

Source: Sephora AU

This product contains tocopherol. This ingredient help neutralize free radicals in skin. By doing so, they might be able to prevent early signs of aging (like fine lines and wrinkles), at least to some extent. These ingredients will not be able to "reverse" signs of aging.

TocopherolEffect: LowPure 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~0.85–1.25%

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~1.6–2.5%

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)~0.6–1.4%

Evens skin tone

Dipotassium glycyrrhizate, Magnesium ascorbyl phosphate + 1 more

Not delivered

What the product description says

“Help brighten and reduce the appearance of pores with this Vitamin C Serum from Skin Inc.”

Source: Beautylish

This product contains ingredients (dipotassium glycyrrhizate) that could help reduce hyperpigmentation (for example, post-acne marks or age spots) in theory, but there is not enough evidence that they actually work.

Dipotassium glycyrrhizateEffect: LowA salt derived from licorice. Works as an emollient to soften the upper layer of the skin and can help calm down inflammation. Might be helpful for skin lightening~0.45–1.05%

Anti-blemish

Allantoin

Not delivered

What the product description says

“Treats inflammatory pimples.”

Source: Sephora AU

Effective ingredients missing or their concentration is too low.

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~0.4–0.9%

Anti-oxidation

Side benefit · Tocopherol, Pyridoxine hcl + 2 more

Works well

This product contains antioxidants (tocopherol) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

TocopherolKey activeEffect: 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~0.85–1.25%

Pyridoxine hclEffect: LowMight help neutralize free radicals in skin~1.1–1.7%

Can it cause trouble?

Irritancy

1 strong irritant: Humulus lupulus extract

Medium risk

We flagged 7 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

Humulus lupulus extractHops extract. Can contain common irritants and allergens geraniol, limonene, linaloolHigh~0.35–0.75%est.

Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~2.1–3.2%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~1.6–2.5%est.

Pyridoxine hclMight help neutralize free radicals in skinMedium~1.1–1.7%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~0.6–1.4%est.

PvpHelps evenly disperse other ingredients in a formulation and create an even layer on the surface of the skinMedium~0.1–0.45%est.

Potassium hydroxideUsed to adjust the pH level of productsMedium~0.1–0.4%est.

Comedogenic

1 ingredient rated 2 or more on the 0–5 pore-clogging scale

1 flagged

These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.

IngredientFunctionRatingEst. amount

AlginUsed to thicken product formulation. Can help attract water to the upper layer of the skin3/5~0.15–0.7%est.

Alternatives

Cheaper, or higher on efficacy

Nacomi Next Lvl Vitamin C - Ascorbyl tetraisopalmitate 5%

Higher efficacy · 83/10054% match

skin ingredients sk.in marvel | hydro shot

Higher efficacy · 75/10054% match

$73.89

View all alternatives

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Ingredients

Filter by role to see what each ingredient is doing.

Herbal extracts

Not recognized

Titanium dioxide~26–39%

Formula

Irritation risk: Low

Works for

Sun protection

Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin

More about Titanium dioxide

Unspecified form of vitamin c~10–15%

Formula

Irritation risk: Low

More about Unspecified form of vitamin c

Tocopherol~5.1–7.7%

Key active

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

Water~3.7–5.5%

Formula

Irritation risk: Low

Plain old water

More about Water

Butylene glycol~2.9–4.3%

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

Glycerin~2.5–3.8%

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

Pentylene glycol~2.1–3.2%

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

Magnesium ascorbyl phosphate~1.6–2.5%

Irritant · medium

Irritation risk: Medium

Works for

Evens skin toneAnti-agingAnti-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

Pyridoxine hcl~1.1–1.7%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

Might help neutralize free radicals in skin

More about Pyridoxine hcl

Tocopherol~0.85–1.25%

Key active

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

Ascorbyl tetraisopalmitate~0.6–1.4%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Anti-oxidationEvens skin toneAnti-agingMoisturizing

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

Alcaligenes polysaccharides~0.5–1.2%

Key active

Irritation risk: Low

Works for

Moisturizing

Help attract water to the upper layer of the skin

More about Alcaligenes polysaccharides

Dipotassium glycyrrhizate~0.45–1.05%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-inflammatoryEvens skin tone

A salt derived from licorice. Works as an emollient to soften the upper layer of the skin and can help calm down inflammation. Might be helpful for skin lightening

More about Dipotassium glycyrrhizate

Allantoin~0.4–0.9%

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

Humulus lupulus extract~0.35–0.75%

Irritant · high

Irritation risk: High

Hops extract. Can contain common irritants and allergens geraniol, limonene, linalool

More about Humulus lupulus extract

Algin~0.15–0.7%

Comedogenic 3/5

Irritation risk: Low
Comedogenicity: 3/5

Works for

Moisturizing

Used to thicken product formulation. Can help attract water to the upper layer of the skin

More about Algin

Carbomer~0.2–0.75%

Formula

Irritation risk: Low

Works for

Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer

Polysorbate 80~0.15–0.6%

Formula

Irritation risk: Low

Works for

Cleansing

Helps water and oil mix together

More about Polysorbate 80

Pvp~0.1–0.45%

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

Titanium dioxide~0.2–0.75%

Formula

Irritation risk: Low

Works for

Sun protection

More about Titanium dioxide

Iron oxides~0.1–0.45%

Formula

Irritation risk: Low

Works for

Sun protection

An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear

More about Iron oxides

Potassium hydroxide~0.1–0.4%

Irritant · medium

Irritation risk: Medium

Used to adjust the pH level of products

More about Potassium hydroxide

Phenoxyethanol~0.1–0.3%

Formula

Irritation risk: Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol

Ingredient list view

Unknown, Titanium dioxide, Unspecified form of vitamin c, Tocopherol, Water, Butylene glycol, Glycerin, Pentylene glycol, Magnesium ascorbyl phosphate, Pyridoxine hcl, Tocopherol, Ascorbyl tetraisopalmitate, Alcaligenes polysaccharides, Dipotassium glycyrrhizate, Allantoin, Humulus lupulus extract, Algin, Carbomer, Polysorbate 80, Pvp, Titanium dioxide, Iron oxides, Potassium hydroxide, Phenoxyethanol

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Beautylish10 ml

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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
	Skin Inc Supplement BarVitamin C SerumYOUR PRODUCT	skin ingredientssk.in marvel \| hydro shot	NacomiNext Lvl Vitamin C - Ascorbyl tetraisopalmitate 5%	ZelensPower C - Collagen-boosting & Brightening
Match	—	54%	54%	53%
Price	$35.00	$73.89+$38.89	—	$62.16+$27.16
Shared key ingredients	—	2 of 7	2 of 7	2 of 7
Key difference	—	Cyclopentasiloxane	Panthenol	Saccharomyces Ferment Lysate Filtrate
Irritancy	Medium	Low	Low	Low
Drying alcohol	—	—	—	—
	View product	Shop	Shop	Shop

More alternatives: Intraceuticals Booster Vitamin C+3 SkinTra C The Light - Serum z Witaminą C Tetra 10%

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 12 studies and safety reviews.

Skin Inc Supplement BarVitamin C Serum

Buy at Beautylish$35.00 Amazon

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

Buy at Beautylish$35.00 Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.