111SKIN

111SKIN Reparative Y Theorem Repair Light Serum

Name: 111SKIN - Reparative Y Theorem Repair Light Serum
Brand: 111SKIN

Efficacy66/100IrritancyMedium

See all ingredients

Works for

Moisturizing

Panthenol, Glycerin + 4 more

Works well

What the product description says

“It cancels out discolouration and pigmentation issues, enabling a brighter and more even tone.”

Source: Allbeauty

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, aloe barbadensis extract.

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. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

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

PanthenolHero· HumectantEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.5–1.15%

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~4–6%

CyanocobalaminKey activeEffect: HighCan support skin barrier function and reduce inflammation in skin~0.1–0.5%

Aloe barbadensis extract· HumectantEffect: LowTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~2–3%

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~0.4–0.95%

Prunus armeniaca kernel oilUnder-dosedAn emollient that helps soften the skin~0.1–0.35%

Evens skin tone

Glycyrrhiza glabra root extract, Niacinamide

Not delivered

What the product description says

“Liquorice root brightens the skin and reduces hyperpigmentation.”

Source: Allbeauty

This product contains ingredients (glycyrrhiza glabra root extract) 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.

Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~0.1–0.45%

Anti-aging

Sodium ascorbyl phosphate, Niacinamide

Not delivered

What the product description says

“Niacinamide supplies the skin with vitamin B3, serves as an anti-inflammatory, and improves the skin's tone.”

Source: Allbeauty

This product does not contain ingredients that are able to reduce fine lines and wrinkles or help with skin elasticity, but it can improve the look of the skin temporarily through moisturization. Well-moisturized skin might also be able to repair the sun damage better.

This ingredient pyridoxine might be able to help neutralize free radicals in skin and help it fight off some of the sun damage.

Sodium ascorbyl phosphateEffect: Low, below effective doseA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C~0.85–1.25%

Anti-oxidation

Not advertised by the brand · Pyridoxine, Calendula officinalis extract + 3 more

May help

This product contains antioxidants (pyridoxine) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

PyridoxineKey activeEffect: MediumMight help neutralize free radicals in skin, but evidence of effectiveness in skin is lacking. It might be irritating~0.15–0.65%

Calendula officinalis extractEffect: LowA plant extract that might help neutralize free radicals in skin~1.6–2.4%

Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~0.1–0.45%

Prunus armeniaca kernel oilEffect: Low, below effective doseAn emollient that helps soften the skin~0.1–0.35%

Sodium ascorbyl phosphateUnder-dosedA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C~0.85–1.25%

Can it cause trouble?

Irritancy

2 strong irritants: Alcohol, Parfum

Medium risk

We flagged 10 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

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~3.5–5.3%est.

Benzyl alcoholA preservative. Can be used to mask unpleasant smell. Can be irritatingHigh~0.5–1%est.

Calendula officinalis extractA plant extract that might help neutralize free radicals in skinHigh~1.6–2.4%est.

Aesculus hippocastanum extractA plant extract. Benefits of topical application are not confirmedHigh~1–1.6%est.

PyridoxineMight help neutralize free radicals in skin, but evidence of effectiveness in skin is lacking. It might be irritatingHigh~0.15–0.65%est.

ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.01–0.1%est.

Aloe barbadensis extractTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~2–3%est.

Sodium ascorbyl phosphateA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin CMedium~0.85–1.25%est.

Glycyrrhiza glabra root extractA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicalsMedium~0.1–0.45%est.

Prunus armeniaca kernel oilAn emollient that helps soften the skinMedium~0.1–0.35%est.

Comedogenic

Clean of flagged comedogenic ingredients

None flagged

Alternatives

Cheaper, or higher on efficacy

NEOGEN X SUR.MEDIC Real Vita C Serum

Higher efficacy · 100/10087% match

$8.24

Maruderm Vitamin C & Peptide Skin Brightening Serum

Higher efficacy · 100/10087% match

$17.25

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

Glycerin~4–6%

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

Alcohol~3.5–5.3%

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

Benzyl alcohol~0.5–1%

Irritant · high

Irritation risk: High

A preservative. Can be used to mask unpleasant smell. Can be irritating

More about Benzyl alcohol

Aloe barbadensis extract~2–3%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis extract

Calendula officinalis extract~1.6–2.4%

Irritant · high

Irritation risk: High

Works for

Anti-oxidationAnti-inflammatory

A plant extract that might help neutralize free radicals in skin

More about Calendula officinalis extract

Carbomer~1.3–2%

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

Sodium hydroxide~1.1–1.7%

Formula

Irritation risk: Low

Used to adjust the product's pH

More about Sodium hydroxide

Aesculus hippocastanum extract~1–1.6%

Irritant · high

Irritation risk: High

A plant extract. Benefits of topical application are not confirmed

More about Aesculus hippocastanum extract

Sodium ascorbyl phosphate~0.85–1.25%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Anti-blemishAnti-oxidationAnti-aging

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

More about Sodium ascorbyl phosphate

Panthenol~0.5–1.15%

Hero · Moisturizing

Irritation risk: Low

Works for

MoisturizingReduces rednessReduces irritation

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

More about Panthenol

Niacinamide~0.4–0.95%

Under-dosed

Irritation risk: Low

Works for

Anti-blemishEvens skin toneMoisturizingAnti-agingReduces irritationReduces rednessAnti-inflammatoryAntibacterial

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

Riboflavin~0.35–0.75%

Formula

Irritation risk: Low

More about Riboflavin

Pyridoxine~0.15–0.65%

Key activeIrritant · high

Irritation risk: High

Works for

Anti-oxidation

Might help neutralize free radicals in skin, but evidence of effectiveness in skin is lacking. It might be irritating

More about Pyridoxine

Cyanocobalamin~0.1–0.5%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-inflammatory

Can support skin barrier function and reduce inflammation in skin

More about Cyanocobalamin

Glycyrrhiza glabra root extract~0.1–0.45%

Irritant · medium

Irritation risk: Medium

Works for

Reduces rednessEvens skin toneAnti-oxidationAnti-inflammatoryAntibacterial

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

Prunus armeniaca kernel oil~0.1–0.35%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

MoisturizingAnti-oxidation

An emollient that helps soften the skin

More about Prunus armeniaca kernel oil

Acetyl cysteine~0.05–0.15%

Formula

Irritation risk: Low

More about Acetyl cysteine

Parfum~0.01–0.1%

Irritant · high

Irritation risk: High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum

Ingredient list view

Water, Glycerin, Alcohol, Benzyl alcohol, Aloe barbadensis extract, Calendula officinalis extract, Carbomer, Sodium hydroxide, Aesculus hippocastanum extract, Sodium ascorbyl phosphate, Panthenol, Niacinamide, Riboflavin, Pyridoxine, Cyanocobalamin, Glycyrrhiza glabra root extract, Prunus armeniaca kernel oil, Acetyl cysteine, Parfum

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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
	111SKINReparative Y Theorem Repair Light SerumYOUR PRODUCT	NEOGEN X SUR.MEDICReal Vita C Serum	MarudermVitamin C & Peptide Skin Brightening Serum	Luv it!Brightining Vitamin C serum
Match	—	87%	87%	85%
Price	—	$8.24	$17.25	—
Shared key ingredients	—	4 of 6	3 of 6	4 of 6
Key difference	—	Ferulic Acid	Pisum Sativum Peptide	Sodium Hyaluronate
Irritancy	Medium	Medium	Low	Medium
Drying alcohol	Contains drying alcohol	—	—	—
	View product	Shop	Shop	Shop

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Product summary

"111SKIN - Reparative Y Theorem Repair Light Serum" is effective for: Moisturizing

Ingredient callouts

An effective concentration of Panthenol (pro-vitamin B5) - about 0.50% - 1.15%. Panthenol helps strengthen the skin barrier, improve hydration and reduce inflammation in skin.
Humectants (panthenol 0.50% - 1.15% and glycerin 4.00% - 6.00%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.