Yves Saint Laurent Forever Youth Liberator Serum

Yves Saint Laurent Forever Youth Liberator Serum
5.1
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.2 Occlusivity icon Occlusivity
$$$$

Review

Results you may expect from using Yves Saint Laurent Forever Youth Liberator Serum:

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

  • Moderate moisturizing. It has a moisturizing rating of 5.1 out of 10.

How moisturizing is it?

Quite moisturizing: Yves Saint Laurent Forever Youth Liberator Serum has a moisturizing rating of 5.1 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a low occlusivity of 0.2 out of 10 and a maximum humectancy of 10 out of 10, primarily due to the high content of Glycerin (est. ≈4.0%), Rhamnose (est. ≈3.0%) and Butylene Glycol (est. ≈2.0%).

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

Anti-wrinkle efficacy

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

It 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 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, could 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
0.3
0.3
0.3
0.3
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Ratings

All humectants
10.9
4
3
2
1
0.3
0.3
0.3
Benchmark
10
All occlusives
0.3
0.3
Benchmark
20
Moisturizing rating
5.1
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 10.9 10
10.0
4
3
2
1
0.3
0.3
0.3
Occlusivity All occlusives 0.3 20
0.2
0.3
Moisturizing rating
5.1
Ingredient Est. % Benchmark Humectancy
4
3
2
1
0.3
0.3
0.3
All humectants 10.9 10
10
All humectants
10.9
4
3
2
1
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
0.3
All occlusives 0.3 20
0.2
All occlusives
0.3
0.3
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
None
All soothing 0 5 No
All soothing
0
None
Benchmark
5

Ingredients explained

Water
Est. %75
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.
Alcohol Denat.
Est. %6
Function
Origin

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.

Glycerin
Est. %4
Function
Origin

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

Rhamnose
Est. %3
Function
Origin
A naturally occurring deoxy sugar that replenishes water levels in the skin.
Butylene Glycol
Est. %2
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.
Hydroxypropyl Tetrahydropyrantriol
Est. %1.5
Function
Origin
Description is coming soon
Cyclohexasiloxane
Est. %1.3
Function
Origin
A clear silicone fluid with very low viscosity that is commonly used as a solvent and emollient. It has excellent spreadability, rubs in quickly, and leaves a silky smooth after-feel on the skin.
Propylene Glycol
Est. %1
Function
Origin
A 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.
Dimethicone
Est. %0.3
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.
Hydroxyethylpiperazine Ethane Sulfonic Acid
Est. %0.3
Function
Origin
A pH buffer that secures the pH around 7.5.
Phenoxyethanol
Est. %0.3
Function
Origin
The 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.
Sodium Hyaluronate
Est. %0.3
Function
Origin
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.
Polysilicone-11
Est. %0.3
Function
Origin
A synthetic rubber-like substance of the silicone family that has no color or distinct scent. These are large molecules that cannot penetrate the skin but instead create a thin silky film on the skin's surface.
Caprylyl Glycol
Est. %0.3
Function
Origin
An 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 Polyacryloyldimethyl Taurate
Est. %0.3
Function
Origin
An emulsion stabilizer and thickener with gelling properties. The products containing this ingredient frequently feature lightweight and refreshing aesthetics upon application to the skin.
Adenosine
Est. %0.3
Function
Origin

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.

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.
PEG-20 Methyl Glucose Sesquistearate
Est. %0.3
Function
Origin
Description is coming soon
Disodium EDTA
Est. %0.3
Function
Origin
A synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions.
Polystyrene
Est. %0.3
Function
Origin
Description is coming soon
PEG-60 Hydrogenated Castor Oil
Est. %0.3
Function
Origin
A white paste-like substance derived from castor oil that belongs to a group of ingredients called PEGs (polyethylene glycols). It acts as a perfume solubilizer that helps fragrance agents dissolve in water and as a cleansing agent.
Citric Acid
Est. %0.3
Function
Origin
A gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling agent.
Chondrus Crispus
Est. %0.3
Function
Origin
An 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.
Linalool
Est. %0.3
Function
Origin
A fragrant, volatile compound naturally present in many essential oils. It has a pleasant scent and is often used in skincare products as a fragrance. People with sensitive skin should try to avoid it, or at least do a patch test before using it.
Alpha-Isomethyl Ionone
Est. %0.3
Function
Origin
A fragrance ingredient that is supplied as a pale, yellow liquid. The scent it emits is very clean and features notes of violet and orris. Alpha-isomethyl is also used as a flavoring agent in lip care products and even in some foods and drinks.
Limonene
Est. %0.3
Function
Origin
One of the most used fragrances in skincare products. It is produced from the peels of citrus fruits and has a fresh, pleasant, citrusy smell. People who are sensitive to citrus should try to avoid it, or at least do a patch test before using it.
Geraniol
Est. %0.3
Function
Origin
A fragrant, volatile, plant-based, liquid chemical that can be naturally found in many essential oils (specifically rose, palmarosa, citronella). It has a rose-like scent. It is a potential irritant and may cause an allergic reaction in some people.
Red 4 (CI 14700)
Est. %0.3
Function
Origin
A synthetic dye that is also known as FD&C Red No. 4. This colorant produces a warm red hue that has an orange or yellow undertone.
Yellow 5 (CI 19140)
Est. %0.3
Function
Origin
A bright yellow colorant that is often also listed as FD&C Yellow 5.
Fragrance
Est. %0.3
Function
Origin
Under 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.