COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap

COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap
5.8
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
1.6 Occlusivity icon Occlusivity

Review

Does COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap work?

Based on the ingredient list analysis by CreamScan AI, these are the key benefits you can expect from using COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap:

  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.8 out of 10.

Lightweight moisturizer ideal for oily skin and a humectant boost for any skincare routine

According to CreamScan analysis, COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap is quite moisturizing, with a moisturizing rating of 5.8 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a low occlusivity of 1.6 out of 10 and a maximum humectancy of 10 out of 10, primarily due to the high content of Butylene Glycol (est. ≈11.3%), Glycerin (est. ≈5.7%) and Betaine (est. ≈2.1%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, offering significant hydration in a lightweight, fast-absorbing formula with a minimal amount of occlusive ingredients. It’s also a great choice for people with normal skin who prefer lightweight moisturizers.

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.

Ingredients

Est. % Ingredient Origin Functions
70
11.3
5.7
3.1
2.1
1.5
1.2
1.1
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Betula Platyphylla Japonica Juice
Function:
Origin:
Butylene Glycol
Function:
Origin:
Glycerin
Function:
Origin:
Dimethicone
Function:
Origin:
Betaine
Function:
Origin:
Cetearyl Alcohol
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Cetearyl Olivate
Function:
Origin:
Sorbitan Olivate
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Function:
Origin:
Ethyl Hexanediol
Function:
Origin:
Xanthan Gum
Function:
Origin:
Allantoin
Function:
Origin:
Panthenol
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Sodium Lactate
Function:
Origin:
4-Terpineol
Function:
Origin:
Water
Function:
Origin:

Ratings

All humectants
20.6
11.3
5.7
2.1
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
3.1
3.1
Benchmark
20
Moisturizing rating
5.8
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 20.6 10
10.0
11.3
5.7
2.1
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 3.1 20
1.6
3.1
Moisturizing rating
5.8
Ingredient Est. % Benchmark Humectancy
11.3
5.7
2.1
0.3
0.3
0.3
0.3
0.3
All humectants 20.6 10
10
All humectants
20.6
11.3
5.7
2.1
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
3.1
All occlusives 3.1 20
1.6
All occlusives
3.1
3.1
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
None
Total
0
None
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
All antioxidants 0.3 3 No
All antioxidants
0.3
Sodium Hyaluronate
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
All soothing 0.6 5 No
All soothing
0.6
0.3
0.3
Benchmark
5

Ingredients explained

Betula Platyphylla Japonica Juice
Est. %70
Function
Origin
Betula Platyphylla Japonica JuiceA fresh sap obtained from the Asian white birch. It contains various antioxidant compounds and is claimed to promote hair growth.
Butylene Glycol
Est. %11.3
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. %5.7
Function
Origin
Glycerin

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

Dimethicone
Est. %3.1
Function
Origin
DimethiconeThe 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.
Betaine
Est. %2.1
Function
Origin
BetaineAn 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.
Cetearyl Alcohol
Est. %1.5
Function
Origin
Cetearyl AlcoholA 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.
1,2-Hexanediol
Est. %1.2
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.
Cetearyl Olivate
Est. %1.1
Function
Origin
Cetearyl Olivate

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. %1
Function
Origin
Sorbitan OlivateAn 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).
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.
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Est. %0.3
Function
Origin
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate CopolymerAn 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.
Ethyl Hexanediol
Est. %0.3
Function
Origin
Ethyl HexanediolA synthetic solvent used to dissolve difficult ingredients. It also has a pleasant scent and could be used to contribute to product fragrance.
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.
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.
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.
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.

Sodium Lactate
Est. %0.3
Function
Origin
Sodium LactateA sodium salt of lactic acid. Its main function is as a humectant but it can also serve as a pH adjuster. Additionally, sodium lactate can also be used as a chemical exfoliant due to its close chemical relation to lactic acid.
4-Terpineol
Est. %0.3
Function
Origin
4-Terpineol
Water
Est. %0.3
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.