L'Occitane Immortelle Precious Serum Review

L'Occitane Immortelle Precious Serum
4.8
/ 10
Moisturizing
9.2 Humectancy icon Humectancy
0.3 Occlusivity icon Occlusivity
Review

Does L'Occitane Immortelle Precious Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what L'Occitane Immortelle Precious Serum has to offer:
 
  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 4.8 out of 10.

Key Benefits of L'Occitane Immortelle Precious Serum

 
These are the key benefits you can expect from using L'Occitane Immortelle Precious Serum:
 

Lightweight Humectant Moisturizer Ideal for Oily Skin

According to CreamScan analysis, L'Occitane Immortelle Precious Serum is quite moisturizing, with a moisturizing rating of 4.8 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 very high humectancy of 9.2 out of 10, primarily due to the high content of Glycerin (est. ≈6.0%) and Methylpropanediol (est. ≈2.0%).

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.

A Humectant Boost for Any Skincare Routine

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.

Please note that this is not a complete list of benefits. We are in the process of enhancing our AI model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Things to Be Aware Of: L'Occitane Immortelle Precious Serum

 
CreamScan AI identified a few things to consider before adding L'Occitane Immortelle Precious Serum to your skincare routine:
 

Questionable anti-wrinkle efficacy

If one of your main reasons for choosing L'Occitane Immortelle Precious Serum is its potential anti-aging effects, please note that, according to CreamScan analysis, it currently 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.

While this does not categorically exclude the possibility that Adenosine may reduce wrinkles, its efficacy is not supported by convincing, vehicle-controlled, double-blind clinical studies - at least none that were accessible to the CreamScan team at the time of publication.

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.

Pros & Cons of L'Occitane Immortelle Precious Serum

 
Here’s an overview of the pros and cons of L'Occitane Immortelle Precious Serum to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • When used alone: Provides humectant-rich moisturizing ideal for oily skin
  • As part of a routine: A humectant moisturizing boost, beneficial for any skin type
  • Lightweight texture

Cons: 

  • Questionable anti-wrinkle efficacy

Ingredients

Est. % Ingredient Origin Functions
70
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
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.15
0.3
0.3
Est. %
Water
Function:
Origin:
Glycerin
Function:
Origin:
Octyldodecanol
Function:
Origin:
Caprylic Acid
Function:
Origin:
Methylpropanediol
Function:
Origin:
Lens Esculenta (Lentil) Fruit Extract
Function:
Origin:
Helichrysum Italicum Flower Oil
Function:
Origin:
Helichrysum Italicum Extract
Function:
Origin:
Helianthus Annuus (Sunflower) Seed
Function:
Origin:
Camellia Oleifera Seed Oil
Function:
Origin:
Adenosine
Function:
Origin:
Hyaluronic Acid
Function:
Origin:
Silanetriol
Function:
Origin:
Tocopherol
Function:
Origin:
Corn Starch Modified
Function:
Origin:
Cellulose Gum
Function:
Origin:
Xanthan Gum
Function:
Origin:
Pentylene Glycol
Function:
Origin:
Mica
Function:
Origin:
Arachidyl Alcohol
Function:
Origin:
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Function:
Origin:
Behenyl Alcohol
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Arachidyl Glycol
Function:
Origin:
Ziyu Glycoside I
Function:
Origin:
Disodium EDTA
Function:
Origin:
Silica
Function:
Origin:
Sorbitan Stearate
Function:
Origin:
Polysorbate 60
Function:
Origin:
Citric Acid
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Fragrance
Function:
Origin:
Hexyl Cinnamal
Function:
Origin:
Methyl Salicylate
Function:
Origin:
Alpha-Ionol
Function:
Origin:
Linalool
Function:
Origin:
Citral
Function:
Origin:
Limonene
Function:
Origin:
Titanium Dioxide (CI 77891)
Function:
Origin:

Ratings

All humectants
9.2
6
2
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.6
0.3
0.3
Benchmark
20
Moisturizing rating
4.8
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 9.2 10
9.2
6
2
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.6 20
0.3
0.3
0.3
Moisturizing rating
4.8
Ingredient Est. % Benchmark Humectancy
6
2
0.3
0.3
0.3
0.3
All humectants 9.2 10
9.2
All humectants
9.2
6
2
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
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
1.5
0.3
0.3
All antioxidants 2.1 3 No
All antioxidants
2.1
Lens Esculenta (Lentil) Fruit Extract
1.5
Hyaluronic Acid
0.3
Tocopherol
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
1
0.3
All soothing 1.3 5 No
All soothing
1.3
1
0.3
Benchmark
5

Ingredients explained

Water
Est. %70
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.

Octyldodecanol
Est. %4
Function
Origin
OctyldodecanolAn emollient fatty alcohol that spreads easily without leaving a greasy residue on the skin. It is also used as a solvent and dispersing agent for other ingredients.
Caprylic Acid
Est. %3
Function
Origin
Caprylic Acid
Methylpropanediol
Est. %2
Function
Origin
MethylpropanediolMethylpropanediol is a unique glycol that contains two primary hydroxyl groups. That makes methylpropanediol a powerful humectant and an excellent solvent.
Lens Esculenta (Lentil) Fruit Extract
Est. %1.5
Function
Origin
Lens Esculenta (Lentil) Fruit ExtractAn antioxidant extract obtained from lentil seeds that contains mainly humectant oligosaccharides. It is also a good source of amino acids and various antioxidant phenolic compounds.
Helichrysum Italicum Flower Oil
Est. %1.3
Function
Origin
Helichrysum Italicum Flower Oil
Helichrysum Italicum Extract
Est. %1
Function
Origin
Helichrysum Italicum Extract
Helianthus Annuus (Sunflower) Seed
Est. %0.3
Function
Origin
Helianthus Annuus (Sunflower) Seed
Camellia Oleifera Seed Oil
Est. %0.3
Function
Origin
Camellia Oleifera Seed OilExtracted from the seeds of the flowering plant tea oil camellia (not to be confused with tea tree oil), this occlusive moisturizing and emollient oil consists of oleic and linoleic fatty acids, vitamin E, and phytosterols.
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.

Hyaluronic Acid
Est. %0.3
Function
Origin
Hyaluronic Acid

A potent, skin-identical humectant moisturizing ingredient that is able to bind water 1000 times its own weight. The anti-aging benefits of hyaluronic acid are due to its ability to stimulate the synthesis of collagen in the skin.

Silanetriol
Est. %0.3
Function
Origin
Silanetriol
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.

Corn Starch Modified
Est. %0.3
Function
Origin
Corn Starch Modified
Cellulose Gum
Est. %0.3
Function
Origin
Cellulose GumA polymer that is derived from its namesake, cellulose, which is plant-based. It has many formula-helper benefits, including thickening and product stabilization.
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.
Pentylene Glycol
Est. %0.3
Function
Origin
Pentylene Glycol

A naturally or synthetically derived preservative that exhibits effective antifungal and antibacterial traits. It also acts as a booster for more traditional preservatives. Pentylene glycol can also serve as a moisturizing humectant and solvent.

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.
Arachidyl Alcohol
Est. %0.3
Function
Origin
Arachidyl AlcoholA non-drying fatty alcohol that functions as an emollient, emulsion stabilizer, and viscosity controlling agent. It also produces a mattifying effect when applied in a skincare product onto the skin.
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.
Behenyl Alcohol
Est. %0.3
Function
Origin
Behenyl AlcoholA fatty alcohol with emollient properties. It is used as a co-emulsifier and thickener and tends to result in a product with a smooth and creamy application texture.
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.
Arachidyl Glycol
Est. %0.3
Function
Origin
Arachidyl Glycol
Ziyu Glycoside I
Est. %0.3
Function
Origin
Ziyu Glycoside I
Disodium EDTA
Est. %0.3
Function
Origin
Disodium EDTAA synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions.
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.
Sorbitan Stearate
Est. %0.3
Function
Origin
Sorbitan StearateA vegetable-derived ingredient most commonly used as an emulsifier to stabilize water and oil mixtures.
Polysorbate 60
Est. %0.3
Function
Origin
Polysorbate 60An ester based on sorbitan. It is good for emulsifying water and oils together – specifically making oil-in-water emulsions. Polysorbate 60 is also said to give a product a notable fragrance.
Citric Acid
Est. %0.3
Function
Origin
Citric AcidA 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.
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.
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.
Potassium Sorbate
Est. %0.3
Function
Origin
Potassium SorbateA preservative widely used in food and personal care products, available from natural sources or synthetically produced. Potassium sorbate works by inhibiting the growth of yeasts, molds, and some bacteria.
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.
Hexyl Cinnamal
Est. %0.3
Function
Origin
Hexyl Cinnamal

A synthetic scent ingredient that produces a jasmine-like fragrance. According to the International Fragrance Association (IFRA), hexyl cinnamal is a skin sensitizer and allergen and so its use in skincare should be limited.

Methyl Salicylate
Est. %0.3
Function
Origin
Methyl Salicylate
Alpha-Ionol
Est. %0.3
Function
Origin
Alpha-Ionol
Linalool
Est. %0.3
Function
Origin
LinaloolA 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.
Citral
Est. %0.15
Function
Origin
Citral

A fragrant compound found in many essential oils (especially lemon myrtle and lemongrass essential oil). It has a sweet, lemon-like scent. People with sensitive skin should try to avoid products with citral, or at least do a patch test before using.

Limonene
Est. %0.3
Function
Origin
Limonene

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.

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.