COSRX Low pH BHA Overnight Mask

COSRX Low pH BHA Overnight Mask
7.8
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
5.5 Occlusivity icon Occlusivity
0.4Anti-wrinkle icon/ 10
Anti-wrinkle
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Review

Results you may expect from using COSRX Low pH BHA Overnight Mask:

Based on the ingredient analysis by CreamScan, these are the key benefits you can expect from using COSRX Low pH BHA Overnight Mask:

  • Significant moisturizing. It has a moisturizing rating of 7.8 out of 10.
  • Little anti-wrinkle effect: COSRX Low pH BHA Overnight Mask has an anti-wrinkle rating of 0.4 out of 10, so you may expect a positive, although insignificant, effect on wrinkles.

How moisturizing is it?

Highly moisturizing: COSRX Low pH BHA Overnight Mask has a moisturizing rating of 7.8 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a maximum humectancy of 10 out of 10, primarily due to the substantial concentration of Butylene Glycol (est. ≈16.5%) and Glycerin (est. ≈4.5%), and a moderate occlusivity of 5.5 out of 10, mainly due to the high content of Helianthus Annuus (Sunflower) Seed Oil (est. ≈8.3%).

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

Anti-wrinkle efficacy

According to CreamScan analysis, COSRX Low pH BHA Overnight Mask has a minimal 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.
 
Among others, COSRX Low pH BHA Overnight Mask also contains Gluconolactone, an ingredient marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Gluconolactone provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards. 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, could deliver additional anti-wrinkle efficacy through its moisturizing action.
 

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

Ingredients

Est. % Ingredient Origin Functions
56.4
16.5
8.3
4.5
3
2.3
1.5
1.1
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.9
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
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Ratings

All humectants
27.5
16.5
4.5
3
2.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
11.0
8.3
1.1
1.0
0.3
0.3
Benchmark
20
Moisturizing rating
7.8
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 27.5 10
10.0
16.5
4.5
3
2.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 11.0 20
5.5
8.3
1.1
1.0
0.3
0.3
Moisturizing rating
7.8
Ingredient Est. % Benchmark Humectancy
16.5
4.5
3
2.3
0.3
0.3
0.3
0.3
All humectants 27.5 10
10
All humectants
27.5
16.5
4.5
3
2.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
8.3
1.1
1
0.3
0.3
All occlusives 11.0 20
5.5
All occlusives
11.0
8.3
1.1
1.0
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
Gluconolactone
-
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
All antioxidants 0.6 3 No
All antioxidants
0.6
Niacinamide
0.3
Melaleuca Alternifolia (Tea Tree) Leaf Oil
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
2.3
0.3
0.3
All soothing 2.9 5 No
All soothing
2.9
2.3
0.3
0.3
Benchmark
5

Ingredients explained

Centella Asiatica Leaf Water
Est. %56.4
Function
Origin
Description is coming soon
Butylene Glycol
Est. %16.5
Function
Origin
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.
Helianthus Annuus (Sunflower) Seed Oil
Est. %8.3
Function
Origin
A fatty oil expressed from sunflower seeds and one of the most commonly used oils in skincare. It has great emollient and occlusive moisturizing properties. Sunflower oil is one of the richest sources of vitamin E – an important skin antioxidant.
Glycerin
Est. %4.5
Function
Origin

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

Betaine
Est. %3
Function
Origin
An ingredient derived from the sucrose in sugar beets. It has a negative chemical charge and a positive chemical charge on the same molecule. This allows betaine to be hygroscopic or humectant and thus provide moisturization by drawing water to the skin.
Panthenol
Est. %2.3
Function
Origin
A 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.
Cetearyl Alcohol
Est. %1.5
Function
Origin
A blend of cetyl alcohol and stearyl alcohol, the fatty alcohols that are derived from palm oil. It helps to create emulsions that give off a soft and silky emollient feel and also increase product thickness.
Dimethicone
Est. %1.1
Function
Origin
The most common silicone in skincare. It forms a silky, smooth film on the skin’s surface and can help to prevent water loss. It also aids in wound healing and can treat and soften scars. Dimethicone is considered to be very safe for use.
Elaeis Guineensis (Palm) Kernel Oil
Est. %1
Function
Origin
Description is coming soon
Beeswax
Est. %0.3
Function
Origin
A waxy substance made by bees while they are building their honeycombs. It is an occlusive moisturizing and emollient ingredient with wound healing and antimicrobial properties similar to those of honey. Its bleached, purified form is called Cera alba.
Gluconolactone
Est. %0.3
Function
Origin
A PHA derived from glucose. It has exfoliating and humectant properties and acts as a penetration enhancer for other ingredients. It has also been shown to assist in the treatment of acne and the prevention of photoaging.
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Est. %0.3
Function
Origin
An emulsion stabilizer and thickener that helps to create a pleasant, satiny, and light formula texture. It works by forming a gel-like network within water or oil, which both stabilizes other ingredients and produces a thickening effect.
Cetearyl Olivate
Est. %0.3
Function
Origin
A multifunctional ingredient derived from plants that primarily serves as an emulsifier. Supplied as a waxy ivory-colored flake, it can also be used as an emollient and slip modifier that gives a product an overall light, silky finish.
Sorbitan Olivate
Est. %0.3
Function
Origin
An ester of sorbitol (a type of sugar alcohol) and olive oil fatty acids. It is used as an emulsifying agent to stabilize oil droplets in water (or vice versa).
Caprylic/Capric Triglyceride
Est. %0.3
Function
Origin
A natural occlusive moisturizing and emollient ingredient, it is a blend of glycerin and two fatty acids, caprylic and capric acid. It creates an oil-based protective layer on the skin, thereby preventing water loss.
1,2-Hexanediol
Est. %0.3
Function
Origin
A multi-functional formula helper. It is a well-studied preservtive against bacteria and can help pigments and fragrances disperse evenly in a formula.
Betaine Salicylate
Est. %0.9
Function
Origin
Description is coming soon
Ethylhexylglycerin
Est. %0.3
Function
Origin
A 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.
Lactic Acid
Est. %0.3
Function
Origin
The most popular AHA in skincare and less irritating than glycolic acid. It can be naturally found in sour milk. It is a humectant moisturizing, pH stabilizing, and gently exfoliating ingredient, able to soften dry, cracked, and peeling skin.
Water
Est. %0.3
Function
Origin
The 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.
Niacinamide
Est. %0.3
Function
Origin

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.

Xanthan Gum
Est. %0.3
Function
Origin
A 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.
Sodium Hydroxide
Est. %0.3
Function
Origin
An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.
Ethyl Hexanediol
Est. %0.3
Function
Origin
A synthetic solvent used to dissolve difficult ingredients. It also has a pleasant scent and could be used to contribute to product fragrance.
Melaleuca Alternifolia (Tea Tree) Leaf Oil
Est. %0.3
Function
Origin
A 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.