111SKIN Y Theorem Repair Light Serum NAC Y2 Review

111SKIN Y Theorem Repair Light Serum NAC Y2
3.7
/ 10
Moisturizing
7.2 Humectancy icon Humectancy
0.2 Occlusivity icon Occlusivity
0.4Anti-wrinkle icon/ 10
Anti-wrinkle
Ingredients

111SKIN Y Theorem Repair Light Serum NAC Y2 Ingredients

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Full Ingredient List (INCI):

Water, Glycerin, Alcohol, Benzyl Alcohol, Aloe Barbadensis Extract, Calendula Officinalis Extract, Carbomer, Sodium Hydroxide, Aesculus Hippocastanum (Horse Chestnut) Extract, Sodium Ascorbyl Phosphate, Panthenol, Niacinamide, Thiamine HCl, Riboflavin, Pyridoxine, Cyanocobalamin, Glycyrrhiza Glabra (Licorice) Root Extract, Prunus Armeniaca (Apricot) Kernel Oil, Acetyl Cysteine, Fragrance
Review

Does 111SKIN Y Theorem Repair Light Serum NAC Y2 Work?

 
According to CreamScan's analysis of the ingredient list, here’s what 111SKIN Y Theorem Repair Light Serum NAC Y2 has to offer:
 
✅ Light moisturizing. It has a moisturizing rating of 3.7 out of 10.
✅ Slight anti-wrinkle effect: 111SKIN Y Theorem Repair Light Serum NAC Y2 has an anti-wrinkle rating of 0.4 out of 10, so you may expect a positive, although insignificant, effect on wrinkles.

  

Key Benefits of 111SKIN Y Theorem Repair Light Serum NAC Y2

 
These are the key benefits you can expect from using 111SKIN Y Theorem Repair Light Serum NAC Y2:
 

🔵 Lightweight Moisturizer Well-Suited for Oily Skin

According to CreamScan analysis, 111SKIN Y Theorem Repair Light Serum NAC Y2 is lightly moisturizing, with a moisturizing rating of 3.7 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a low occlusivity of 0.2 out of 10 and a high humectancy of 7.2 out of 10, primarily due to the high content of Glycerin (est. ≈6.0%).

This humectant-rich product, when used alone as a moisturizer, is well-suited for oily skin, providing moderate hydration in a lightweight, fast-absorbing formula with a minimal amount of occlusive ingredients.

It can also be a good option for people with normal skin who prefer lightweight moisturizers.

💧 A Humectant Enhancement for Any Skincare Routine

But it’s not limited to oily skin - such a humectant enhancement will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer. This type of formulation is typically used in serums, where a light, fast-absorbing texture is key.

Please refer to the Ratings section below for details of the moisturizing rating calculation.

🟣 Slight Anti-Wrinkle Efficacy

According to CreamScan analysis, 111SKIN Y Theorem Repair Light Serum NAC Y2 has a slight anti-wrinkle rating of 0.4 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Niacinamide (est. ≈0.3%),
 one of the most effective and well-researched anti-wrinkle ingredients. A clinical study involving 30 participants (Kawada et al.) confirmed that a cream with 4% niacinamide reduced the average depth of wrinkles around the eyes by 9% after 8 weeks of use, compared to a vehicle (the same formulation without niacinamide).
 
Among others, 111SKIN Y Theorem Repair Light Serum NAC Y2 also contains Sodium Ascorbyl Phosphate, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Sodium Ascorbyl Phosphate provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards.
 
While this does not categorically rule out the possibility that Sodium Ascorbyl Phosphate may reduce wrinkles, its efficacy is not supported by convincing, vehicle-controlled, double-blind clinical studies - at least none that were available to the CreamScan team at the time of publication.
 
Therefore, this ingredient does not contribute to the anti-wrinkle rating.
 
📌 Moisturizers, when used regularly, are proven to prevent wrinkle formation and even reduce existing wrinkles. Therefore, this product, like any other moisturizer, can deliver some additional anti-wrinkle effects through its moisturizing action.
 

Please refer to the Ratings section below for details of the anti-wrinkle rating calculation.

📌 Please note that this is not a complete list of benefits. We are in the process of enhancing our model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Pros & Cons of 111SKIN Y Theorem Repair Light Serum NAC Y2

 
Here’s an overview of the pros and cons of 111SKIN Y Theorem Repair Light Serum NAC Y2 to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

✅ When used alone: Provides humectant-rich moisturizing well-suited for oily skin
✅ As part of a routine: A humectant moisturizing enhancement, beneficial for any skin type
✅ Lightweight texture
Provides slight anti-wrinkle efficacy
 

⭕ Cons: 

✅ We couldn't find any
   

Summary: 111SKIN Y Theorem Repair Light Serum NAC Y2

 
Based on the ingredient list analysis, CreamScan AI suggests that 111SKIN Y Theorem Repair Light Serum NAC Y2
, when used alone, delivers lightweight, humectant-rich moisturizing that is well-suited for oily skin. As part of a moisturizing routine, it provides a humectant enhancement, beneficial for all skin types.
 
111SKIN Y Theorem Repair Light Serum NAC Y2 contains ingredients with proven evidence of anti-wrinkle efficacy that may offer a slight anti-wrinkle effect. As a result, you can expect a positive, though relatively minimal, impact on wrinkles.
 
 
📌 Fact check. At CreamScan, we are committed to accuracy and fairness. If you spot any errors or something that doesn’t seem right, please click here to let us know. We regularly update the ingredient lists and monitor the latest research on ingredient efficacy to ensure that our information remains as complete and precise as possible. The information provided here is for informational purposes only and does not substitute professional advice. We do not guarantee the efficacy or safety of any product, as individual results may vary.

 

Ingredient Breakdown

Est. % Ingredient Origin Functions
85
6
4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Glycerin
Function:
Origin:
Alcohol
Function:
Origin:
Benzyl Alcohol
Function:
Origin:
Aloe Barbadensis Extract
Function:
Origin:
Calendula Officinalis Extract
Function:
Origin:
Carbomer
Function:
Origin:
Sodium Hydroxide
Function:
Origin:
Aesculus Hippocastanum (Horse Chestnut) Extract
Function:
Origin:
Sodium Ascorbyl Phosphate
Function:
Origin:
Panthenol
Function:
Origin:
Niacinamide
Function:
Origin:
Thiamine HCl
Function:
Origin:
Riboflavin
Function:
Origin:
Pyridoxine
Function:
Origin:
Cyanocobalamin
Function:
Origin:
Glycyrrhiza Glabra (Licorice) Root Extract
Function:
Origin:
Prunus Armeniaca (Apricot) Kernel Oil
Function:
Origin:
Acetyl Cysteine
Function:
Origin:
Fragrance
Function:
Origin:

Ratings

All humectants
7.2
6
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.3
0.3
Benchmark
20
Moisturizing rating
3.7
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 7.2 10
7.2
6
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.3 20
0.2
0.3
Moisturizing rating
3.7
Ingredient Est. % Benchmark Humectancy
6
0.3
0.3
0.3
0.3
All humectants 7.2 10
7.2
All humectants
7.2
6
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
0.3
All occlusives 0.3 20
0.2
All occlusives
0.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
6 /10 4 0.3 0.4
n/a
- 0.3 -
Total
0.4
Niacinamide
0.4
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
0.3
Sodium Ascorbyl Phosphate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
0.4
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 2.4 3 No
All antioxidants
2.4
Niacinamide
0.3
Aloe Barbadensis Extract
0.3
Calendula Officinalis Extract
0.3
Aesculus Hippocastanum (Horse Chestnut) Extract
0.3
Sodium Ascorbyl Phosphate
0.3
Riboflavin
0.3
Glycyrrhiza Glabra (Licorice) Root Extract
0.3
Acetyl Cysteine
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All soothing 2.1 5 No
All soothing
2.1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %85
Function
Origin
WaterThe most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Glycerin
Est. %6
Function
Origin
Glycerin

The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective.

Alcohol
Est. %4
Function
Origin
AlcoholAn effective antimicrobial ingredient that kills bacteria, fungi, and even some viruses. It is also an excellent solvent and astringent. Alcohol helps to create lighter and less viscous products. It can, however, be dehydrating and skin-sensitizing.
Benzyl Alcohol
Est. %0.3
Function
Origin
Benzyl Alcohol

A multifunctional ingredient that is supplied as a clear, colorless liquid. Its main function is as a flavoring agent and fragrance. It also acts as a broad-spectrum preservative, solvent, and viscosity-controlling agent that thins the product.

Aloe Barbadensis Extract
Est. %0.3
Function
Origin
Aloe Barbadensis ExtractAn antioxidant extract from the gelatinous pulp of Aloe vera leaves with humectant moisturizing polysaccharide mucilage. It is suitable for irritated or eczema-prone skin.
Calendula Officinalis Extract
Est. %0.3
Function
Origin
Calendula Officinalis ExtractA soothing extract derived from the marigold plant. It is rich in anti-inflammatory and antioxidant carotenoids, flavonoids, and triterpenes.
Carbomer
Est. %0.3
Function
Origin
CarbomerA synthetic ingredient with the ability to gel water. When used in emulsions, such as lotions and creams, carbomer can also act as an emulsion stabilizer.
Sodium Hydroxide
Est. %0.3
Function
Origin
Sodium Hydroxide

An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.

Aesculus Hippocastanum (Horse Chestnut) Extract
Est. %0.3
Function
Origin
Aesculus Hippocastanum (Horse Chestnut) ExtractAn extract obtained from horse chestnut seeds that contains an anti-inflammatory and astringent mixture called Aescin. It also offers soothing benefits and is aimed at irritated skin.
Sodium Ascorbyl Phosphate
Est. %0.3
Function
Origin
Sodium Ascorbyl PhosphateThe most researched derivative of vitamin C. It boosts collagen synthesis, thereby improving skin structure and elasticity. SAP is effective in the treatment of inflamed acne lesions and has a weak but positive effect on pigmentation issues.
Panthenol
Est. %0.3
Function
Origin
PanthenolA popular soothing and moisturizing derivative of vitamin B5. Panthenol is particularly beneficial for dry, flaking, burned, or damaged skin. It is used to alleviate the symptoms of a rash, dermatitis, eczema, chapped lips, and sunburn.
Niacinamide
Est. %0.3
Function
Origin
Niacinamide

Also known as vitamin B3, this ingredient is a true superstar with confirmed moisturizing, anti-acne, hyperpigmentation, and antioxidant benefits. Two studies confirm its significant anti-wrinkle efficacy.

Thiamine HCl
Est. %0.3
Function
Origin
Thiamine HClAlso known as vitamin B1, the benefits of this ingredient in skincare are not yet clear. It may have some benefits to energy metabolism, but this hasn't been confirmed. It has a typical, sulfur-like smell.
Riboflavin
Est. %0.3
Function
Origin
RiboflavinRiboflavin, also known as Vitamin B2, is used in skincare as a coloring agent due to its bright, brilliant orange-yellow color. The research shows that it is a good antioxidant and can protect the skin from UV-induced damage.
Pyridoxine
Est. %0.3
Function
Origin
PyridoxinePyridoxine, also known as vitamin B6, is required by the body to produce amino acids, carbohydrates, and lipids. Its benefits in skincare have not been researched as of yet.
Cyanocobalamin
Est. %0.3
Function
Origin
CyanocobalaminA product of bacterial fermentation that may have soothing and rejuvenating skin effects.
Glycyrrhiza Glabra (Licorice) Root Extract
Est. %0.3
Function
Origin
Glycyrrhiza Glabra (Licorice) Root ExtractAn extract from the licorice root. It contains a well-researched anti-inflammatory compound called glycyrrhizin that can reduce inflammation. Licorice root extract is also used for its powerful antioxidant effects and ability to treat pigmentation.
Prunus Armeniaca (Apricot) Kernel Oil
Est. %0.3
Function
Origin
Prunus Armeniaca (Apricot) Kernel OilA fatty oil expressed from the seed kernels of apricot fruits. This oil is an emollient and occlusive moisturizer comprised of around 60% oleic acid, followed by linoleic and palmitic acid, carotenoids, vitamin E, and other antioxidant compounds.
Acetyl Cysteine
Est. %0.3
Function
Origin
Acetyl Cysteine
Fragrance
Est. %0.3
Function
Origin
FragranceUnder trade secret law, manufacturers have the right not to disclose what exactly went into the fragrance and use the unspecific word Fragrance or Parfum instead. Many fragrances are highly allergenic.