111SKIN Celestial Black Diamond Eye Mask Review

111SKIN Celestial Black Diamond Eye Mask
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
4.7Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Ingredients

111SKIN Celestial Black Diamond Eye Mask Ingredients

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Full Ingredient List (INCI):

Water, Glycerin, Butylene Glycol, Alcohol, Citrus Paradisi (Grapefruit) Fruit Extract, Niacinamide, Rosa Canina Fruit Extract, PEG-60 Hydrogenated Castor Oil, Carbomer, Xanthan Gum, Bis-PEG-18 Methyl Ether Dimethyl Silane, Potassium Hydroxide, Ethylhexylglycerin, Tocopheryl Acetate, Sodium Hyaluronate, Retinol, Polysorbate 20, Silica, Diamond Powder, 1,2-Hexanediol, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyquaternium-51, Sodium Oleate, Hydrogenated Lecithin, Acetyl Hexapeptide-8, Disodium EDTA, Phenoxyethanol, Fragrance
Review

Does 111SKIN Celestial Black Diamond Eye Mask Work?

 
According to CreamScan's analysis of the ingredient list, here’s what 111SKIN Celestial Black Diamond Eye Mask has to offer:
 
✅ Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.
✅ Considerable anti-wrinkle efficacy: 111SKIN Celestial Black Diamond Eye Mask has an anti-wrinkle rating of 4.7 out of 10, indicating a moderate ability to reduce wrinkles.
✅ Antioxidant protection

  

Key Benefits of 111SKIN Celestial Black Diamond Eye Mask

 
These are the key benefits you can expect from using 111SKIN Celestial Black Diamond Eye Mask:
 

🔵 Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, 111SKIN Celestial Black Diamond Eye Mask is quite moisturizing, with a moisturizing rating of 5.0 out of 10.

Is it more humectant or occlusive? It is purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a maximum humectancy of 10 out of 10, primarily due to the high content of Glycerin (est. ≈6.0%) and Butylene Glycol (est. ≈4.0%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, providing significant hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.

📌 Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

💧 A Humectant Boost for Any Skincare Routine

But it’s not limited to oily skin - such a humectant boost 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.

🟣🟣 Considerable Anti-Wrinkle Efficacy

According to CreamScan analysis, 111SKIN Celestial Black Diamond Eye Mask has a moderate anti-wrinkle rating of 4.7 out of 10.

It contains 2 active ingredients with proven anti-wrinkle efficacy:

1️⃣ Retinol (est. ≈0.1%),
 the most effective non-prescription anti-wrinkle ingredient. Numerous clinical studies have shown its positive effects at concentrations as low as 0.1%. A study with 36 participants (Kafi et al.) confirmed that a lotion containing 0.4% retinol reduced wrinkle severity by 21% after 24 weeks of use, compared to the same formulation without retinol (vehicle).
 
2️⃣ Niacinamide (est. ≈1.5%),
 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 Celestial Black Diamond Eye Mask also contains Acetyl Hexapeptide-8, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Acetyl Hexapeptide-8 provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards.
 
While this does not categorically rule out the possibility that Acetyl Hexapeptide-8 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.

🍀 Rich in Skin-Protecting Antioxidants

We estimate that 111SKIN Celestial Black Diamond Eye Mask is rich (> 3%) in antioxidants, specifically Citrus Paradisi (Grapefruit) Fruit Extract (est. ≈2.0%).

A key benefit of antioxidants is their ability to reduce oxidative stress caused by free radicals and therefore prevent accelerated skin aging. Studies also show that antioxidants can protect against environmental damage such as UV radiation and pollution, and help reduce inflammation and skin redness.

📌 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.

Things to Be Aware Of: 111SKIN Celestial Black Diamond Eye Mask

 
CreamScan identified a few things to consider before adding 111SKIN Celestial Black Diamond Eye Mask to your skincare routine:
 

⚠️ May Increase Skin Photosensitivity Due to Retinol

This product contains retinol, which offers powerful anti-wrinkle benefits. The mechanism behind retinol’s action is boosting cell turnover. This process exposes new, more delicate skin, making it more vulnerable to sun damage.

As a result, using products with retinol may increase the skin's sensitivity, making it more prone to sunburn or irritation when exposed to UV rays.

To protect the skin, dermatologists recommend applying a broad-spectrum sunscreen with at least SPF 30 throughout the duration of retinol treatment, along with avoiding direct sun exposure. Retinol should be used at night, as it is sensitive to sunlight and can lose its potency when exposed to UV rays.

📌 Please always check the manufacturer's instructions for using the retinol-containing products, either on their website or product label.

⚠️ If It’s Your Only Moisturizer, It Needs to Be Paired with Some Occlusives

While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.

One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.

If you’re using 111SKIN Celestial Black Diamond Eye Mask as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.

If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.

Pros & Cons of 111SKIN Celestial Black Diamond Eye Mask

 
Here’s an overview of the pros and cons of 111SKIN Celestial Black Diamond Eye Mask to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

✅ When used alone: Provides humectant-rich moisturizing ideal for oily skin
✅ As part of a routine: A humectant moisturizing boost, beneficial for any skin type
✅ Lightweight texture
Provides considerable anti-wrinkle efficacy thanks to Retinol and Niacinamide
✅ Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage
 

⭕ Cons: 

⚠️ May increase skin photosensitivity due to retinol
⚠️ Only if used as a standalone moisturizer - it needs to be paired with occlusives to seal in humectants
   

Summary: 111SKIN Celestial Black Diamond Eye Mask

 
Based on the ingredient list analysis, CreamScan AI suggests that 111SKIN Celestial Black Diamond Eye Mask
, when used alone, delivers lightweight, humectant-rich moisturizing, making it ideal for oily skin. As part of a moisturizing routine, it provides a humectant boost, beneficial for all skin types.
 
111SKIN Celestial Black Diamond Eye Mask contains ingredients with solid, robust evidence of anti-wrinkle efficacy, in concentrations that may deliver a noticeable anti-wrinkle effect.
 
With its high antioxidant content, 111SKIN Celestial Black Diamond Eye Mask helps protect against free radical damage and offers multiple benefits for all skin types, including preventing premature aging, defending against environmental damage, and calming inflammation.
 
That said, there are some things about 111SKIN Celestial Black Diamond Eye Mask worth noting.
 
Looking at its moisturizing profile, we found that it doesn’t contain any occlusive ingredients, potentially allowing the moisture attracted to the skin by humectants to evaporate. Therefore, if it’s used as the only moisturizer in a routine, it’s recommended to pair it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones.
 
This product contains retinol, the most powerful and well-researched non-prescription anti-wrinkle ingredient. However, retinol can make your skin more prone to sun damage and increase sensitivity, so it’s recommended to use a broad-spectrum sunscreen with at least SPF 30 throughout the duration of retinol treatment.
 
📌 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
75
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.1
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:
Butylene Glycol
Function:
Origin:
Alcohol
Function:
Origin:
Citrus Paradisi (Grapefruit) Fruit Extract
Function:
Origin:
Niacinamide
Function:
Origin:
Rosa Canina Fruit Extract
Function:
Origin:
PEG-60 Hydrogenated Castor Oil
Function:
Origin:
Carbomer
Function:
Origin:
Xanthan Gum
Function:
Origin:
Bis-PEG-18 Methyl Ether Dimethyl Silane
Function:
Origin:
Potassium Hydroxide
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Retinol
Function:
Origin:
Polysorbate 20
Function:
Origin:
Silica
Function:
Origin:
Diamond Powder
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Ammonium Acryloyldimethyltaurate/VP Copolymer
Function:
Origin:
Polyquaternium-51
Function:
Origin:
Sodium Oleate
Function:
Origin:
Hydrogenated Lecithin
Function:
Origin:
Acetyl Hexapeptide-8
Function:
Origin:
Disodium EDTA
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Fragrance
Function:
Origin:

Ratings

All humectants
13.0
6
4
1.5
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 13.0 10
10.0
6
4
1.5
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
4
1.5
0.3
0.3
0.3
0.3
0.3
All humectants 13.0 10
10
All humectants
13.0
6
4
1.5
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
None
All occlusives 0.0 20
0.0
All occlusives
0.0
None
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
10 /10 0.4 0.1 2.5
6 /10 4 1.5 2.2
n/a
- 0.3 -
Total
4.7
Retinol
2.5
Ingredient anti-wrinkle power
10 /10
when present at, %
0.4
in this formula, est. %
0.1
Niacinamide
2.2
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
1.5
Acetyl Hexapeptide-8
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
4.7
Ingredient Est. % Benchmark
Rich in Antioxidants
2
1.5
1.3
0.3
0.3
All antioxidants 5.4 3 Rich in antioxidants
All antioxidants
5.4
Citrus Paradisi (Grapefruit) Fruit Extract
2
Niacinamide
1.5
Rosa Canina Fruit Extract
1.3
Tocopheryl Acetate
0.3
Sodium Hyaluronate
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
1.5
All soothing 1.5 5 No
All soothing
1.5
1.5
Benchmark
5

Ingredients explained

Water
Est. %75
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.

Butylene Glycol
Est. %4
Function
Origin
Butylene Glycol

A clear, colorless liquid humectant that draws moisture to the skin. The humectancy of butylene glycol, owed to its two hydroxyl groups, is quite considerable, although not as powerful as glycerin, which contains three hydroxyl groups.

Alcohol
Est. %3
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.
Citrus Paradisi (Grapefruit) Fruit Extract
Est. %2
Function
Origin
Citrus Paradisi (Grapefruit) Fruit Extract

A fragrant extract derived from grapefruit peels. It mainly contains essential oil and various antioxidant organic acids and flavonoids. Limonene is responsible for its citrusy scent.

Niacinamide
Est. %1.5
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.

Rosa Canina Fruit Extract
Est. %1.3
Function
Origin
Rosa Canina Fruit ExtractAn extract from the fruits of the Rosa canina, better known as rosehip. It contains carotenoids, which give it its bright, orange-red color, as well as high amounts of antioxidant vitamin C, flavonoids, tannins, and organic acids.
PEG-60 Hydrogenated Castor Oil
Est. %1
Function
Origin
PEG-60 Hydrogenated Castor OilA white paste-like substance derived from castor oil that belongs to a group of ingredients called PEGs (polyethylene glycols). It acts as a perfume solubilizer that helps fragrance agents dissolve in water and as a cleansing agent.
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.
Xanthan Gum
Est. %0.3
Function
Origin
Xanthan GumA natural multi-functional ingredient that originates from fermented sugars. Xanthan gum acts as a viscosity-building agent to thicken skincare products. It is also an excellent stabilizer and works well to hold other ingredients together.
Bis-PEG-18 Methyl Ether Dimethyl Silane
Est. %0.3
Function
Origin
Bis-PEG-18 Methyl Ether Dimethyl SilaneA silicone with the unusual trait of being able to disperse in water. It moisturizes the skin as a humectant and leaves a soft and smooth after-feel. This ingredient also has foam-boosting properties.
Potassium Hydroxide
Est. %0.3
Function
Origin
Potassium HydroxideA very alkaline ingredient, meaning that it has a high pH. Potassium hydroxide is therefore useful in bringing a low pH in a cosmetic product up to a more neutral, skin-safe level.
Ethylhexylglycerin
Est. %0.3
Function
Origin
EthylhexylglycerinA preservative booster derived from glycerin. It is commonly paired with other preservatives to improve their efficacy. Ethylhexylglycerin is also a humectant due to its chemical base of glycerin.
Tocopheryl Acetate
Est. %0.3
Function
Origin
Tocopheryl Acetate

An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol.

Sodium Hyaluronate
Est. %0.3
Function
Origin
Sodium Hyaluronate

A sodium salt of famous hyaluronic acid. A potent humectant that hydrates the skin, supports collagen function, and fills out small wrinkles. Sodium hyaluronate also offers soothing and antioxidant properties.

Retinol
Est. %0.1
Function
Origin
Retinol

One of the most famous and well-researched anti-aging ingredients with a maximum anti-wrinkle power of 10 out of 10. It is proven to decrease wrinkles and help the skin regain its thickness, firmness, and texture. Retinol is also effective in treating pigmentation issues such as dark spots and acne.

Polysorbate 20
Est. %0.3
Function
Origin
Polysorbate 20A viscous, amber-colored liquid that functions as a solubilizer to disperse small amounts of oil into a large water phase. Polysorbate 20 is frequently used to solubilize fragrance oils into water-based emulsions.
Silica
Est. %0.3
Function
Origin
SilicaA widely used cosmetic ingredient with the same chemical composition as the sand found on beaches. A common function of silica is its ability to control viscosity. In certain chemical forms, it can effectively thicken cream-style products.
Diamond Powder
Est. %0.3
Function
Origin
Diamond PowderA synthetically produced luxury ingredient that has both light-scattering and exfoliating properties.
1,2-Hexanediol
Est. %0.3
Function
Origin
1,2-HexanediolA multi-functional formula helper. It is a well-studied preservtive against bacteria and can help pigments and fragrances disperse evenly in a formula.
Ammonium Acryloyldimethyltaurate/VP Copolymer
Est. %0.3
Function
Origin
Ammonium Acryloyldimethyltaurate/VP CopolymerA polymeric ingredient that creates lightweight and refreshing gel textures. It also works as a viscosity controlling agent.
Polyquaternium-51
Est. %0.3
Function
Origin
Polyquaternium-51A biocompatible phospholipid copolymer that is designed to mimic the lipid-based cell membrane found in human skin. Its main function is as a humectant moisturizer.
Sodium Oleate
Est. %0.3
Function
Origin
Sodium OleateSodium oleate is a sodium salt of oleic acid. It has the typical properties of soap: it foams in water and emulsifies oil into tiny droplets. It comes in the form of a white powder and is used in skincare products exactly as you would expect – as a cleanser and emulsifier.
Hydrogenated Lecithin
Est. %0.3
Function
Origin
Hydrogenated LecithinA version of plain lecithin that has been saturated with hydrogen atoms. This ingredient can be derived from plants, like soy or sunflower, from egg yolks, or made synthetically. Its major function is to emulsify water and oils.
Acetyl Hexapeptide-8
Est. %0.3
Function
Origin
Acetyl Hexapeptide-8

A small synthetic peptide that is thought to act similarly to Botox by calming contractions of the facial muscles and reducing expression wrinkles. The effect is only temporary and it does not improve the skin structure in any way.

Disodium EDTA
Est. %0.3
Function
Origin
Disodium EDTAA synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions.
Phenoxyethanol
Est. %0.3
Function
Origin
PhenoxyethanolThe most frequently used preservative in skincare. It is a clear, oil-like liquid synthetic substance that protects products from harmful bacteria and yeast, whilst still leaving skin microflora unharmed. It is confirmed by research to be harmless.
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.