Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum

Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum
5.2
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.3 Occlusivity icon Occlusivity
7.5Anti-wrinkle icon/ 10
Anti-wrinkle

Review

Results you may expect from using Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum:

Based on the ingredient analysis by CreamScan, these are the key benefits you can expect from using Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum:

  • Moderate moisturizing. It has a moisturizing rating of 5.2 out of 10.
  • Significant anti-wrinkle efficacy. With an anti-wrinkle rating of 7.5 out of 10, Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum is effective in minimizing wrinkles.

How moisturizing is it?

Quite moisturizing: Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum has a moisturizing rating of 5.2 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a low occlusivity of 0.3 out of 10 and a maximum humectancy of 10 out of 10, primarily due to the high content of Glycerin (est. ≈6.0%), Propanediol (est. ≈4.0%) and Butylene Glycol (est. ≈3.0%).

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

Anti-wrinkle efficacy

According to CreamScan analysis, Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum has a high anti-wrinkle rating of 7.5 out of 10. It contains one ingredient with proven anti-wrinkle efficacy: Retinol (est. ≈0.3%),
 the most effective non-prescription ingredient with well-proven efficacy to reduce wrinkles.
 
Among others, Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum also contains Adenosine, an ingredient marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Adenosine provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards. Therefore, this ingredient does not contribute to the anti-wrinkle rating.
 

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

Ingredients

Est. % Ingredient Origin Functions
75
Water
6
Glycerin
4
Propanediol
3
Butylene Glycol
2
Glycereth-26
1.5
Panthenol
1.3
1,2-Hexanediol
1
Polyglycerin-3
0.3
C12-14 Pareth-12
0.3
Phenoxyethanol
0.3
Caprylyl Glycol
0.3
Ammonium Acryloyldimethyltaurate/VP Copolymer
0.3
Betaine
0.3
Xanthan Gum
0.3
Ethylhexylglycerin
0.3
Adenosine
0.3
Carbomer
0.3
Glyceryl Acrylate/Acrylic Acid Copolymer
0.3
Tromethamine
0.3
Glycereth-25 PCA Isostearate
0.3
t-Butyl Alcohol
0.3
Tocopherol
0.3
Cellulose Acetate Butyrate
0.3
Tricaprylin
0.3
Retinol
0.3
Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate
0.3
Silica Silylate
0.3
Silica
0.3
Magnesium Stearate
Est. %
Water
Function:
Origin:
Glycerin
Function:
Origin:
Propanediol
Function:
Origin:
Butylene Glycol
Function:
Origin:
Glycereth-26
Function:
Origin:
Panthenol
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Polyglycerin-3
Function:
Origin:
C12-14 Pareth-12
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Caprylyl Glycol
Function:
Origin:
Ammonium Acryloyldimethyltaurate/VP Copolymer
Function:
Origin:
Betaine
Function:
Origin:
Xanthan Gum
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Adenosine
Function:
Origin:
Carbomer
Function:
Origin:
Glyceryl Acrylate/Acrylic Acid Copolymer
Function:
Origin:
Tromethamine
Function:
Origin:
Glycereth-25 PCA Isostearate
Function:
Origin:
t-Butyl Alcohol
Function:
Origin:
Tocopherol
Function:
Origin:
Cellulose Acetate Butyrate
Function:
Origin:
Tricaprylin
Function:
Origin:
Retinol
Function:
Origin:
Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate
Function:
Origin:
Silica Silylate
Function:
Origin:
Silica
Function:
Origin:
Magnesium Stearate
Function:
Origin:

Ratings

All humectants
18.7
6
4
3
2
1.5
1
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.6
0.3
0.3
Benchmark
20
Moisturizing rating
5.2
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 18.7 10
10.0
6
4
3
2
1.5
1
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.6 20
0.3
0.3
0.3
Moisturizing rating
5.2
Ingredient Est. % Benchmark Humectancy
6
4
3
2
1.5
1
0.3
0.3
0.3
0.3
All humectants 18.7 10
10
All humectants
18.7
6
4
3
2
1.5
1
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
0.3
0.3
All occlusives 0.6 20
0.3
All occlusives
0.6
0.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
10 /10 0.4 0.3 7.5
n/a
- 0.3 -
Total
7.5
Retinol
7.5
Ingredient anti-wrinkle power
10 /10
when present at, %
0.4
in this formula, est. %
0.3
Adenosine
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
7.5
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
0.3
All antioxidants 0.6 3 No
All antioxidants
0.6
Tocopherol
0.3
Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate
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.

Propanediol
Est. %4
Function
Origin
PropanediolAn excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.
Butylene Glycol
Est. %3
Function
Origin
Butylene GlycolA 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.
Glycereth-26
Est. %2
Function
Origin
Glycereth-26

A glycerin-based ingredient with humectant moisturizing properties. It is an excellent emulsifier and thickener.

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.
1,2-Hexanediol
Est. %1.3
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.
Polyglycerin-3
Est. %1
Function
Origin
Polyglycerin-3Description is coming soon
C12-14 Pareth-12
Est. %0.3
Function
Origin
C12-14 Pareth-12Description is coming soon
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.
Caprylyl Glycol
Est. %0.3
Function
Origin
Caprylyl GlycolAn emollient that improves product spreadability and offers a silky feel on the skin. It also acts as a preservative booster that improves the efficacy of other preservatives. According to the manufacturer, it is also a humectant moisturizer.
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.
Betaine
Est. %0.3
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.
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.
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.
Adenosine
Est. %0.3
Function
Origin
Adenosine

A key molecule responsible for energy transportation, signaling, and enzyme activity. Adenosine is a popular anti-wrinkle ingredient, however, the key study about its anti-wrinkle efficacy (1) does not meet CreamScan Research Evaluation Standards as it is not double-blind.

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.
Glyceryl Acrylate/Acrylic Acid Copolymer
Est. %0.3
Function
Origin
Glyceryl Acrylate/Acrylic Acid CopolymerA synthetic humectant moisturizer often paired with glycerin. It also functions as a viscosity-controlling agent that creates gel-like formulas with thicker textures.
Tromethamine
Est. %0.3
Function
Origin
TromethamineAn ingredient based on amino acids that is commonly used as a pH adjuster. It has a high pH, which means that it is basic (alkaline), so adding tromethamine to a skincare product will increase its overall pH level.
Glycereth-25 PCA Isostearate
Est. %0.3
Function
Origin
Glycereth-25 PCA IsostearateDescription is coming soon
t-Butyl Alcohol
Est. %0.3
Function
Origin
t-Butyl AlcoholDescription is coming soon
Tocopherol
Est. %0.3
Function
Origin
Tocopherol

Simply another name for vitamin E. Tocopherol is a fantastic ingredient and especially beneficial for dry and inflamed skin. It has occlusive moisturizing, emollient, antioxidant, and photoprotective properties.

Cellulose Acetate Butyrate
Est. %0.3
Function
Origin
Cellulose Acetate ButyrateDescription is coming soon
Tricaprylin
Est. %0.3
Function
Origin
TricaprylinDescription is coming soon
Retinol
Est. %0.3
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.

Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate
Est. %0.3
Function
Origin
Pentaerythrityl Tetra-di-t-butyl HydroxyhydrocinnamateAn antioxidant that protects vulnerable ingredients from the damage caused by ultraviolet radiation, which can also lead to the generation of damaging free radical species.
Silica Silylate
Est. %0.3
Function
Origin
Silica SilylateA synthetic powder that thickens oils and features a velvety texture.
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.
Magnesium Stearate
Est. %0.3
Function
Origin
Magnesium StearateA multifunctional ester that thickens and prevents clumping.