COSRX Advanced Snail Mucin Power Sheet Mask Review

COSRX Advanced Snail Mucin Power Sheet Mask
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
Rich
in Antioxidants
Rich Skin Soothing icon
in Skin Soothers
Review

Does COSRX Advanced Snail Mucin Power Sheet Mask Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what COSRX Advanced Snail Mucin Power Sheet 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.
  • Soothing: COSRX Advanced Snail Mucin Power Sheet Mask contains a high concentration of soothing ingredients, which may help to reduce irritation and calm the skin.
  • Antioxidant protection.

Key Benefits of COSRX Advanced Snail Mucin Power Sheet Mask

 
These are the key benefits you can expect from using COSRX Advanced Snail Mucin Power Sheet Mask:
 

Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, COSRX Advanced Snail Mucin Power Sheet 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 Butylene Glycol (est. ≈6.0%), Glycerin (est. ≈4.0%) and Snail Secretion Filtrate (est. ≈3.0%).

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.

Tip: 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.

Rich in Skin-Protecting Antioxidants

We estimate that COSRX Advanced Snail Mucin Power Sheet Mask is rich (> 3%) in antioxidants, specifically Snail Secretion Filtrate (est. ≈3.0%).

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.

Skin Soothing and Calming Potential

Based on the ingredient list analysis, COSRX Advanced Snail Mucin Power Sheet Mask is rich (> 5%) in soothing ingredients, particularly Snail Secretion Filtrate (est. ≈3.0%).

When applied to the skin, compounds of soothing ingredients, such as triglycerides, phospholipids, fatty acids, phenolic compounds, and antioxidants, work together to soothe the skin through various mechanisms: reducing inflammation, promoting wound healing, repairing the skin barrier, and providing antimicrobial and antioxidant activities.

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

Things to Be Aware Of: COSRX Advanced Snail Mucin Power Sheet Mask

 
CreamScan AI identified a few things to consider before adding COSRX Advanced Snail Mucin Power Sheet Mask to your skincare routine:
 

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 COSRX Advanced Snail Mucin Power Sheet 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.

Questionable anti-wrinkle efficacy

If one of your main reasons for choosing COSRX Advanced Snail Mucin Power Sheet Mask is its potential anti-aging effects, please note that, according to CreamScan analysis, it currently has a zero anti-wrinkle rating.

It contains Snail Secretion Filtrate, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Snail Secretion Filtrate provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards.

While this does not categorically exclude the possibility that Snail Secretion Filtrate may reduce wrinkles, its efficacy is not supported by convincing, vehicle-controlled, double-blind clinical studies - at least none that were accessible to the CreamScan team at the time of publication.

Therefore, this ingredient does not generate 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 anti-wrinkle effects through its moisturizing action.

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

Pros & Cons of COSRX Advanced Snail Mucin Power Sheet Mask

 
Here’s an overview of the pros and cons of COSRX Advanced Snail Mucin Power Sheet Mask to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • Humectant-rich moisturizing ideal for oily skin
  • Lightweight texture
  • A humectant moisturizing boost for any skincare routine
  • Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage such as UV radiation and pollution
  • Contains a high concentration of soothing ingredients, which may help reduce irritation and soothe the skin

Cons: 

  • Needs occlusives to seal in humectants if used as a standalone moisturizer
  • Questionable anti-wrinkle efficacy

Ingredients

Est. % Ingredient Origin Functions
80
6
4
3
2
1.5
1.3
1
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:
Butylene Glycol
Function:
Origin:
Glycerin
Function:
Origin:
Snail Secretion Filtrate
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Panthenol
Function:
Origin:
Hydroxyacetophenone
Function:
Origin:
Hexylene Glycol
Function:
Origin:
Xanthan Gum
Function:
Origin:
Dipropylene Glycol
Function:
Origin:
Sodium Polyacrylate
Function:
Origin:
Allantoin
Function:
Origin:
Hydroxyethylcellulose
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Disodium EDTA
Function:
Origin:
Dipotassium Glycyrrhizate
Function:
Origin:
Melaleuca Alternifolia (Tea Tree) Leaf Oil
Function:
Origin:
Polyglyceryl-10 Laurate
Function:
Origin:
Polyglyceryl-10 Myristate
Function:
Origin:

Ratings

All humectants
15.4
6
4
3
1.5
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 15.4 10
10.0
6
4
3
1.5
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
3
1.5
0.3
0.3
0.3
All humectants 15.4 10
10
All humectants
15.4
6
4
3
1.5
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
n/a
- 3 -
Total
0
Snail Secretion Filtrate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
3
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
3
1.3
0.3
0.3
All antioxidants 4.9 3 Rich in antioxidants
All antioxidants
4.9
Snail Secretion Filtrate
3
Hydroxyacetophenone
1.3
Sodium Hyaluronate
0.3
Melaleuca Alternifolia (Tea Tree) Leaf Oil
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
3
1.5
0.3
0.3
0.3
All soothing 5.4 5 Rich in soothing
All soothing
5.4
3
1.5
0.3
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %80
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.
Butylene Glycol
Est. %6
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.

Glycerin
Est. %4
Function
Origin
Glycerin

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

Snail Secretion Filtrate
Est. %3
Function
Origin
Snail Secretion FiltrateA purified and filtered slime from garden snails. It contains humectant and soothing mucin (which showed amazing results in clinical tests), decreased redness and stinging, and improved firmness, hydration, and coloration of the skin.
1,2-Hexanediol
Est. %2
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.
Panthenol
Est. %1.5
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.
Hydroxyacetophenone
Est. %1.3
Function
Origin
HydroxyacetophenoneAn antioxidant compound that can be found in many plants, although it is manufactured synthetically for skincare purposes. It can boost the preservative action of other conservants.
Hexylene Glycol
Est. %1
Function
Origin
Hexylene GlycolA multifunctional ingredient that is best known for its use as a solvent. It can dissolve both water-based ingredients and oils. For this reason, it can also function as an emulsifier, allowing oil and water ingredients to mix and remain stable.
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.
Dipropylene Glycol
Est. %0.3
Function
Origin
Dipropylene GlycolA clear, colorless liquid that has several uses. One of its main functions is as a solvent. Dipropylene glycol is also used to reduce the thickness of skincare products.
Sodium Polyacrylate
Est. %0.3
Function
Origin
Sodium PolyacrylateThis white powder is primarily used as a viscosity controlling agent. It is added to the water phase, which then thickens to form a clear gel. Sodium polyacrylate can also serve as an emollient, absorbent, and emulsion stabilizer.
Allantoin
Est. %0.3
Function
Origin
AllantoinA fluffy, white powder that acts as a humectant due to its water-loving chemistry and as an exfoliant that helps to remove dead skin cells. It has also been shown to be very soothing to irritated and inflamed skin.
Hydroxyethylcellulose
Est. %0.3
Function
Origin
HydroxyethylcelluloseA naturally-derived thickener that can form clear gel textures without the slimy feeling, unlike some other natural gel-formers.
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.

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.
Dipotassium Glycyrrhizate
Est. %0.3
Function
Origin
Dipotassium GlycyrrhizateA licorice root derivative with powerful anti-inflammatory and soothing activities. It is often used as a flavoring agent in lip products.
Melaleuca Alternifolia (Tea Tree) Leaf Oil
Est. %0.3
Function
Origin
Melaleuca Alternifolia (Tea Tree) Leaf OilA fragrant and antioxidant essential tea tree oil praised for its antiseptic and antimicrobial properties. Tea tree oil helps to treat acne, inflamed skin, and small wounds. It might, however, cause allergies and skin irritations.
Polyglyceryl-10 Laurate
Est. %0.3
Function
Origin
Polyglyceryl-10 LaurateA vegetable glycerin or synthetically produced emulsifier and gentle cleansing agent. It won't leave skin feeling tight or dry when used to cleanse.
Polyglyceryl-10 Myristate
Est. %0.3
Function
Origin
Polyglyceryl-10 MyristateA solubilizer that can help incorporate small amounts of oil to an otherwise watery product while providing lightweight skin feel.