Yves Saint Laurent Forever Youth Liberator Eye Zone Serum

Yves Saint Laurent Forever Youth Liberator Eye Zone Serum
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity

Review

Does Yves Saint Laurent Forever Youth Liberator Eye Zone Serum work?

Based on the ingredient list analysis by CreamScan AI, these are the key benefits you can expect from using Yves Saint Laurent Forever Youth Liberator Eye Zone Serum:

  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.

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

According to CreamScan analysis, Yves Saint Laurent Forever Youth Liberator Eye Zone Serum 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. ≈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.

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.

Questionable anti-wrinkle efficacy

According to CreamScan analysis, Yves Saint Laurent Forever Youth Liberator Eye Zone Serum has a zero anti-wrinkle rating.

It contains Adenosine, an ingredient often 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 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.

Ingredients

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
0.3
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:
Bifida Ferment Lysate
Function:
Origin:
Butylene Glycol
Function:
Origin:
Alcohol Denat.
Function:
Origin:
Bis-PEG-18 Methyl Ether Dimethyl Silane
Function:
Origin:
PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin
Function:
Origin:
Rhamnose
Function:
Origin:
Hydroxyethylpiperazine Ethane Sulfonic Acid
Function:
Origin:
Hydroxypropyl Tetrahydropyrantriol
Function:
Origin:
Propylene Glycol
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Carbomer
Function:
Origin:
Ammonium Polyacryloyldimethyl Taurate
Function:
Origin:
Chlorphenesin
Function:
Origin:
PPG-3 Myristyl Ether
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Adenosine
Function:
Origin:
Polystyrene
Function:
Origin:
Sodium Hydroxide
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Mica
Function:
Origin:
Chondrus Crispus
Function:
Origin:
Titanium Dioxide (CI 77891)
Function:
Origin:
Carmine (CI 75470)
Function:
Origin:
Fragrance
Function:
Origin:

Ratings

All humectants
13.7
6
3
1.5
1.3
1
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 13.7 10
10.0
6
3
1.5
1.3
1
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
3
1.5
1.3
1
0.3
0.3
0.3
All humectants 13.7 10
10
All humectants
13.7
6
3
1.5
1.3
1
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
- 0.3 -
Total
0
Adenosine
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
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
4
All soothing 4 5 No
All soothing
4
4
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.

Bifida Ferment Lysate
Est. %4
Function
Origin
Bifida Ferment LysateA mixture of probiotic bacteria. According to the patent holder, it contains enzymes that are able to repair damaged DNA in skin cells. A single study confirms that it is able to reduce skin sensitivity.
Butylene Glycol
Est. %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.

Alcohol Denat.
Est. %2
Function
Origin
Alcohol Denat.

Denatured alcohol is ethanol that contains additives that make it unsafe to consume. It is mainly used as a solvent and an antimicrobial agent. A major drawback to alcohol denat. is that it dries out the skin.

Bis-PEG-18 Methyl Ether Dimethyl Silane
Est. %1.5
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.
PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin
Est. %1.3
Function
Origin
PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin
Rhamnose
Est. %1
Function
Origin
RhamnoseA naturally occurring deoxy sugar that replenishes water levels in the skin.
Hydroxyethylpiperazine Ethane Sulfonic Acid
Est. %0.3
Function
Origin
Hydroxyethylpiperazine Ethane Sulfonic AcidA pH buffer that secures the pH around 7.5.
Hydroxypropyl Tetrahydropyrantriol
Est. %0.3
Function
Origin
Hydroxypropyl Tetrahydropyrantriol
Propylene Glycol
Est. %0.3
Function
Origin
Propylene GlycolA clear, thick, odorless liquid of synthetic origin. Its main function is to stabilize cosmetic products exposed to varying temperatures. It is also a moderately strong humectant with similar properties to glycerin.
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.
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.
Ammonium Polyacryloyldimethyl Taurate
Est. %0.3
Function
Origin
Ammonium Polyacryloyldimethyl TaurateAn emulsion stabilizer and thickener with gelling properties. The products containing this ingredient frequently feature lightweight and refreshing aesthetics upon application to the skin.
Chlorphenesin
Est. %0.3
Function
Origin
ChlorphenesinA preservative and broad-spectrum antimicrobial agent that protects products from a wide range of bacteria and fungi.
PPG-3 Myristyl Ether
Est. %0.3
Function
Origin
PPG-3 Myristyl Ether
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.

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.

Polystyrene
Est. %0.3
Function
Origin
Polystyrene
Sodium Hydroxide
Est. %0.3
Function
Origin
Sodium Hydroxide

An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.

Sodium Benzoate
Est. %0.3
Function
Origin
Sodium BenzoateA preservative that usually works in combination with other preservatives. It has to be at low pH (<5.5) to be effective.
Mica
Est. %0.3
Function
Origin
MicaA mineral powder made up of silicates with several functions (the main one being as a colorant). It has a shimmery appearance, making it highly desirable in certain cosmetic products. Mica also helps the product to apply more smoothly.
Chondrus Crispus
Est. %0.3
Function
Origin
Chondrus CrispusAn ingredient obtained from the red marine algae Irish moss. It contains a gel-forming algal polysaccharide carrageenan and is a rich source of antimicrobial iodine and sulfur. It also offers various antioxidants.
Titanium Dioxide (CI 77891)
Est. %0.3
Function
Origin
Titanium Dioxide (CI 77891)One of two the most commonly used mineral sunscreens. It can absorb UV light, including UVB – which causes burning, tanning, and even skin cancer. Also used as a colorant, titanium dioxide gives a product a bright white color.
Carmine (CI 75470)
Est. %0.3
Function
Origin
Carmine (CI 75470)
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.