1st on the list, which puts it at an estimated 30–80% of the formula.
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
111Skin
Repair Serum NAC Y2
face neck serum
111Skin
face neck serum
Added Last edited
Fit by skin type
General, ingredient-based — not your personalized match.
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Take the skin testFuture-proofing your skin by targeting the early signs of stress, 111SKIN's Repair Serum NAC Y2 leaves skin with a plumper, smoother appearance while boosting natural radiance. Powered by 111SKIN's proprietary NAC Y² complex, which has been encapsulated to deliver actives deeper into the skin, the new and improved formula works at a cellular level to visibly repair and soothe. It promotes the production of glutathione (a main antioxidant in the body) to protect skin, while improving the look of firmness and elasticity. Applying with a cooling, velvety texture, the facial serum also helps to reduce the appearance of fine lines and redness. Say hello to a healthy glow...
Repair Serum NAC Y2 is a lightweight serum from 111Skin. The formula is built mainly around hydration. The ingredient list runs to 28 ingredients, each broken down in full below.
By its ingredient list the formula reads as light: water and humectants lead, with emollients kept lower in the order. Hydration is handled by Glycerin, Water and Sorbitol, humectants that pull water into the upper layers of skin rather than sealing it there.
Hydration: High. Ingredients that pull and hold water in the upper layers of skin, and here that comes from Glycerin, Water, Sorbitol and Isopropyl Myristate.
On richness alone it suits Balanced skin best, and is the least natural fit for Dry and Combination (dry) skin. Nothing in the list is flagged as a common irritant, which is a reasonable starting point for reactive skin — though a patch test is still the only way to know.
The formula contributes little or nothing on oil control, cell renewal and firmness signalling. That is not a fault — most products are not meant to do everything — but if one of those is your priority, this is not the product that will address it. One ingredient on the label has not been matched to our database yet, so the analysis above reads a slightly incomplete list.
It does contain drying alcohol, worth knowing if your skin reacts to any of them.
It can be used morning and evening. In a routine it goes after toner, before moisturiser. Apply to clean, dry skin and give it a minute to absorb before the next layer. Introduce one new treatment at a time so you can identify what is working.
This summary is generated from the product's ingredient list. It is not a review, it is not the brand's own marketing claims, and it does not replace advice from a dermatologist.
Drawn purely from the ingredient list
Scored on how rich or light the formula reads from its INCI order.
No ingredient in this formula carries a common-irritant flag, making it a reasonable option for reactive skin. A patch test is still recommended, as individual skin reactivity varies.
Based on the curated benefits documented for this product's ingredients.
Attracts and locks in moisture to keep skin plump and dewy
Boosts collagen and cell turnover to reduce fine lines and wrinkles
Calms redness, irritation, and inflammation for sensitive skin
Brightens and balances complexion for a more uniform appearance
Fades hyperpigmentation and evens out dark spots over time
Tightens and refines the look of enlarged pores
None of the ingredients in this formula are associated with these benefits. This is not unusual, as most products are designed to target a limited number of concerns.
The actives, UV filters and benefit-carrying ingredients in this formula, in the order they are listed.
1st on the list, which puts it at an estimated 30–80% of the formula.
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
2nd on the list, which puts it at an estimated 5–20% of the formula.
Glycerine ;Glycerol (INN); Glycerol (RIFM); Glycerolum (EP); Glycyl Alcohol; 1,2,3-Propanetriol; 1,2,3-Trihydroxypropane
3rd on the list, which puts it at an estimated 5–20% of the formula.
D-Glucitol
4th on the list, which puts it at an estimated 2–10% of the formula.
Tetradecanoic acid, isopropyl ester
5th on the list, which puts it at an estimated 2–10% of the formula.
Ethanol
7th on the list, which puts it at an estimated 1–5% of the formula.
L-Ascorbic acid, 2-(dihydrogen phosphate), trisodium salt
10th on the list, which puts it at an estimated 1–5% of the formula.
Niacinamide (vitamin B3) is a gentle skincare active that repairs the skin barrier, calms redness, controls oil and evens tone at 2–5%. Official IUPAC name: **3-Pyridinecarboxamide**
11th on the list, which puts it at an estimated 1–3% of the formula.
Calendula Officinalis Flower Extract is an extract obrained from the flowers of the Calendula, Calendula officinalis L., Compositae
13th on the list, which puts it at an estimated 1–3% of the formula.
Aloe Barbadensis Leaf Extract is an extract of the leaves of the aloe, Aloe barbadensis, Liliaceae
14th on the list, which puts it at an estimated 1–3% of the formula.
Centella Asiatica Extract is the extract of the whole plant Hydrocotyl, Centella asiatica L., Apiaceae
16th on the list, which puts it at an estimated 1–3% of the formula.
Lecithins. The complex combination of diglycerides of fatty acids linked to the choline ester of phosphoric acid
17th on the list, which puts it at an estimated 1–3% of the formula.
Stigmast-5-en-3-.beta.-ol
Each axis is scored from the ingredients present and how high up the list they sit.
Ingredients that pull and hold water in the upper layers of skin
Lipids and repair signals that support skin barrier integrity
Ingredients that mop up free radicals from UV and pollution
Ingredients that moderate sebum or absorb shine
Ingredients that act on uneven tone and post-inflammatory marks
Ingredients aimed at visible redness and reactivity
Retinoids, acids and enzymes that speed surface turnover
Peptides and growth factors that signal for collagen support
"Active" here means an ingredient carrying a recorded active type or a recognised UV filter.
Solvents, emollients, texture agents and preservatives — the formula that carries the actives.
Part of this label has not been matched to our ingredient database, so only what is present is listed — no absence is claimed.
Alcohol
Judged by the same curated rules our routine checker uses. It reads the ingredients, not the label.
Nothing in this formula belongs to a group our rules can put in conflict, so it layers freely. Order still matters — thinnest texture first.
This product is the "Treat" step.
Flags to check, not verdicts. None of this is medical advice — if you are pregnant, breastfeeding or treating a skin condition, ask a doctor.
Most ingredients do more than one job, so these counts add up to more than the 28 ingredients on the label.
Sets the thickness, spread and stability of the formula
Softens and smooths by filling gaps between skin cells
Botanical material, usually for antioxidants or scent
Dissolves and carries everything else
Lifts oil and dirt, or holds oil and water together
Neutralises free radicals from UV and pollution
Draws water into the upper layers of skin
Changes how skin behaves rather than how it feels
Calms visible redness and irritation
Forms a film that slows water loss
Sets the acidity the formula needs to work
Keeps the product free of microbial growth
Every ingredient on the label, in order, with what it does and roughly how much of it is likely to be there.
1st on the list, which puts it at an estimated 30–80% of the formula.
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
2nd on the list, which puts it at an estimated 5–20% of the formula.
Glycerine ;Glycerol (INN); Glycerol (RIFM); Glycerolum (EP); Glycyl Alcohol; 1,2,3-Propanetriol; 1,2,3-Trihydroxypropane
3rd on the list, which puts it at an estimated 5–20% of the formula.
D-Glucitol
4th on the list, which puts it at an estimated 2–10% of the formula.
Tetradecanoic acid, isopropyl ester
5th on the list, which puts it at an estimated 2–10% of the formula.
Ethanol
6th on the list, which puts it at an estimated 2–10% of the formula.
Polyacrylate Crosspolymer-6 is a copolymer of ammonium acryloyldimethyltaurate, dimethylacrylamide, lauryl methacrylate and laureth-4 methacrylate, crosslinked with trimethylolpropane triacrylate
7th on the list, which puts it at an estimated 1–5% of the formula.
L-Ascorbic acid, 2-(dihydrogen phosphate), trisodium salt
8th on the list, which puts it at an estimated 1–5% of the formula.
Acetylcysteine
9th on the list, which puts it at an estimated 1–5% of the formula.
Escin
10th on the list, which puts it at an estimated 1–5% of the formula.
Niacinamide (vitamin B3) is a gentle skincare active that repairs the skin barrier, calms redness, controls oil and evens tone at 2–5%. Official IUPAC name: **3-Pyridinecarboxamide**
11th on the list, which puts it at an estimated 1–3% of the formula.
Calendula Officinalis Flower Extract is an extract obrained from the flowers of the Calendula, Calendula officinalis L., Compositae
12th on the list, which puts it at an estimated 1–3% of the formula.
Cistus Incanus Flower/Leaf/Stem Extract is an extract of the flowers, leaves and stems of the rock rose, Cistus incanus, Cistaceae
13th on the list, which puts it at an estimated 1–3% of the formula.
Aloe Barbadensis Leaf Extract is an extract of the leaves of the aloe, Aloe barbadensis, Liliaceae
14th on the list, which puts it at an estimated 1–3% of the formula.
Centella Asiatica Extract is the extract of the whole plant Hydrocotyl, Centella asiatica L., Apiaceae
15th on the list, which puts it at an estimated 1–3% of the formula.
Aesculus Hippocastanum Seed Extract is an extract of the nut of the Horse Chestnut, Aesculus hippocastanum L., Hippocastanaceae
16th on the list, which puts it at an estimated 1–3% of the formula.
Lecithins. The complex combination of diglycerides of fatty acids linked to the choline ester of phosphoric acid
17th on the list, which puts it at an estimated 1–3% of the formula.
Stigmast-5-en-3-.beta.-ol
18th on the list, which puts it at an estimated 1–3% of the formula.
soybean
19th on the list, which puts it at an estimated 1–3% of the formula.
Sphingolipids, glycosides
20th on the list, which puts it at an estimated 1–3% of the formula.
1,2,3-Propanetriol, homopolymer, dodecanoates (1:1) (6 mol glycerol average molar ratio)
21st on the list, which puts it at an estimated 1–3% of the formula.
ester of decaglycerol and oleic acid
22nd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
2-Propenoic acid, polymer with 2,2-bis(hydroxymethyl)propane-1,3-diol 2-propenyl ether
23rd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Ethanone, 1-(4-hydroxyphenyl)-,p-Hydroxyacetophenone
24th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
25th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Octane-1,2-diol
26th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Sorbitan palmitate
27th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Sodium hydroxide
28th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
3-Phenylpropan-1-ol; Phenethyl carbinol
These are printed on the label but have not been linked to an ingredient record yet, so they are excluded from the analysis above.
Products in the same category that share this formula's distinguishing ingredients.
Centellian24
Shares 7 key ingredients with Repair Serum NAC Y2: Water, Glycerin, Niacinamide, Centella Asiatica Extract, Alcohol
NEOGEN
Shares 6 key ingredients with Repair Serum NAC Y2: Water, Niacinamide, Glycerin, Sodium Ascorbyl Phosphate, Centella Asiatica Extract
111Skin
Shares 6 key ingredients with Repair Serum NAC Y2: Water, Glycerin, Sorbitol, Isopropyl Myristate, Sodium Ascorbyl Phosphate
Medicube
Shares 5 key ingredients with Repair Serum NAC Y2: Water, Glycerin, Niacinamide, Lecithin, Centella Asiatica Extract
Eqqualberry
Shares 5 key ingredients with Repair Serum NAC Y2: Water, Glycerin, Niacinamide, Aloe Barbadensis Leaf Extract, Centella Asiatica Extract
Holika Holika
Shares 5 key ingredients with Repair Serum NAC Y2: Water, Glycerin, Beta-sitosterol, Aloe Barbadensis Leaf Extract, Lecithin
WATER, GLYCERIN, SORBITOL, ISOPROPYL MYRISTATE, ALCOHOL, POLYACRYLATE CROSSPOLYMER-6, SODIUM ASCORBYL PHOSPHATE, ACETYL CYSTEINE, ESCIN, NIACINAMIDE, CALENDULA OFFICINALIS FLOWER EXTRACT, CISTUS INCANUS FLOWER/LEAF/STEM EXTRACT, ALOE BARBADENSIS LEAF EXTRACT, CENTELLA ASIATICA EXTRACT, AESCULUS HIPPOCASTANUM SEED EXTRACT, LECITHIN, BETA-SITOSTEROL, SOY ISOFLAVONES, GLYCOSPHINGOLIPIDS, POLYGLYCERYL-6 LAURATE, POLYGLYCERYL-10 OLEATE, CARBOMER, HYDROXYACETOPHENONE, 1,2-HEXANEDIOL, CAPRYLYL GLYCOL, SORBITAN PALMITATE, SODIUM HYDROXIDE, PHENYLPROPANOL.
SODIUM ASCORBYL PHOSPHATE, NIACINAMIDE.
Distribute one to two pumps between fingertips and apply to your face and neck in upward, circular motions every morning and evening.
Judged on how rich the formula reads from its ingredient list, it suits Balanced skin best. It is the least natural fit for Dry, Combination (dry) skin.
No ingredient in this formula carries a common-irritant flag, making it a reasonable option for reactive skin. A patch test is still recommended, as individual skin reactivity varies.
4 ingredients could feed malassezia: Isopropyl Myristate, Polyglyceryl-6 Laurate, Polyglyceryl-10 Oleate, Sorbitan Palmitate. That describes the yeast's food supply, not a prediction that they will cause a breakout.
Nothing in this formula is on the standard pregnancy-caution list. That is not medical clearance — check anything you use daily with your doctor or midwife.
Yes — it contains Alcohol.
It layers well with Vitamin C (L-ascorbic acid), Retinoids (retinol, retinal), AHAs (glycolic, lactic), BHA (salicylic acid), PHAs (gluconolactone), Benzoyl peroxide.
Use it morning and evening, after toner, before moisturiser.
It lists 28 ingredients, of which 2 are recorded as actives.
111Skin.
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