Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum Review

Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
6Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Rich Skin Soothing icon
in Skin Soothers
Review

Does Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum has to offer:
 
  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.
  • Significant anti-wrinkle efficacy. With an anti-wrinkle rating of 6.0 out of 10, Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum is effective in minimizing wrinkles.
  • Soothing: Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum contains a high concentration of soothing ingredients, which may help to reduce irritation and calm the skin.
  • Antioxidant protection.

Key Benefits of Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum

 
These are the key benefits you can expect from using Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum:
 

Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst 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 Niacinamide (est. ≈4.0%).

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.

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.

Significant Anti-Wrinkle Efficacy

According to CreamScan analysis, Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum has a high anti-wrinkle rating of 6.0 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Niacinamide (est. ≈4.0%), 
 one of the most effective and well-researched anti-wrinkle ingredients. A clinical study involving 30 participants (Kawada et al.) confirmed that a cream with 4% niacinamide reduced the average depth of wrinkles around the eyes by 9% after 8 weeks of use, compared to a vehicle (the same formulation without niacinamide).
 
Among others, Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum also contains contains Sodium Ascorbyl Phosphate and Palmitoyl Tripeptide-5, two ingredients often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of these ingredients provide insufficient evidence of efficacy according to CreamScan Research Evaluation Standards. Therefore, these ingredients do not contribute to the anti-wrinkle rating.
 

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

Rich in Skin-Protecting Antioxidants

We estimate that Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum is rich (> 3%) in antioxidants, specifically Niacinamide (est. ≈4.0%) and Alpha-Arbutin (est. ≈2.0%).

A key benefit of antioxidants is their ability to reduce oxidative stress caused by free radicals and therefore prevent accelerated skin aging. Studies also show that antioxidants can protect against environmental damage such as UV radiation and pollution, and help reduce inflammation and skin redness.

Skin Soothing and Calming Potential

Based on the ingredient list analysis, Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum is rich (> 5%) in soothing ingredients, particularly Niacinamide (est. ≈4.0%).

When applied to the skin, compounds of soothing ingredients, such as triglycerides, phospholipids, fatty acids, phenolic compounds, and antioxidants, work together to soothe the skin through various mechanisms: reducing inflammation, promoting wound healing, repairing the skin barrier, and providing antimicrobial and antioxidant activities.

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: Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum

 
CreamScan AI identified a few things to consider before adding Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum to your skincare routine:
 

If It’s Your Only Moisturizer, It Needs to Be Paired with Some Occlusives

While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.

One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.

If you’re using Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.

If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.

Pros & Cons of Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum

 
Here’s an overview of the pros and cons of Jeuvenile Alpha Arbutin 2% + Liposomal Vitamin C 5% + Hyaluronic Acid 1% Leke Karst Serum to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • Humectant-rich moisturizing ideal for oily skin
  • Lightweight texture
  • A humectant moisturizing boost for any skincare routine
  • Delivers signficant anti-wrinkle efficacy
  • Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage such as UV radiation and pollution
  • Contains a high concentration of soothing ingredients, which may help reduce irritation and soothe the skin

Cons: 

  • Needs occlusives to seal in humectants if used as a standalone moisturizer

Ingredients

Est. % Ingredient Origin Functions
75
6
4
2
1.9
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
Est. %
Water
Function:
Origin:
Glycerin
Function:
Origin:
Niacinamide
Function:
Origin:
Alpha-Arbutin
Function:
Origin:
Propylene Glycol
Function:
Origin:
Panthenol
Function:
Origin:
PEG-12 Dimethicone
Function:
Origin:
Pentylene Glycol
Function:
Origin:
Hydrolyzed Glycosaminoglycans
Function:
Origin:
Sodium Ascorbyl Phosphate
Function:
Origin:
Palmitoyl sh-Octapeptide-24 Amide
Function:
Origin:
Palmitoyl Tripeptide-5
Function:
Origin:
Palmitoyl sh-Tripeptide-5 Norisoleucyl sh-Nonapeptide-1
Function:
Origin:
Glycyrrhiza Glabra (Licorice) Root Extract
Function:
Origin:
Hyaluronic Acid
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Hydrolyzed Hyaluronic Acid
Function:
Origin:
Sodium Hyaluronate Crosspolymer
Function:
Origin:
Lactic Acid/Glycolic Acid Copolymer
Function:
Origin:
Lecithin
Function:
Origin:
Allantoin
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Hydroxyethylcellulose
Function:
Origin:
Lactic Acid
Function:
Origin:
Sorbitol
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Propanediol
Function:
Origin:
Xanthan Gum
Function:
Origin:
Tetrasodium EDTA
Function:
Origin:
Caprylyl Glycol
Function:
Origin:
Disodium EDTA
Function:
Origin:
Polyvinyl Alcohol
Function:
Origin:
Glyceryl Caprylate
Function:
Origin:
Phenylpropanol
Function:
Origin:

Ratings

All humectants
18.3
6
4
1.9
1.5
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
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 18.3 10
10.0
6
4
1.9
1.5
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
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
4
1.9
1.5
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
All humectants 18.3 10
10
All humectants
18.3
6
4
1.9
1.5
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
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
6 /10 4 4 6
n/a
- 0.3 -
n/a
- 0.3 -
Total
6
Niacinamide
6
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
4
Sodium Ascorbyl Phosphate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Palmitoyl Tripeptide-5
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
6
Ingredient Est. % Benchmark
Rich in Antioxidants
4
2
0.3
0.3
0.3
0.3
0.3
All antioxidants 7.5 3 Rich in antioxidants
All antioxidants
7.5
Niacinamide
4
Alpha-Arbutin
2
Sodium Ascorbyl Phosphate
0.3
Glycyrrhiza Glabra (Licorice) Root Extract
0.3
Hyaluronic Acid
0.3
Sodium Hyaluronate
0.3
Hydrolyzed Hyaluronic Acid
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
4
1.5
0.3
0.3
All soothing 6.1 5 Rich in soothing
All soothing
6.1
4
1.5
0.3
0.3
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.

Niacinamide
Est. %4
Function
Origin
Niacinamide

Also known as vitamin B3, this ingredient is a true superstar with confirmed moisturizing, anti-acne, hyperpigmentation, and antioxidant benefits. Two studies confirm its significant anti-wrinkle efficacy.

Alpha-Arbutin
Est. %2
Function
Origin
Alpha-Arbutin
Propylene Glycol
Est. %1.9
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.
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.
PEG-12 Dimethicone
Est. %1.3
Function
Origin
PEG-12 DimethiconeA synthetic silicone that improves lubricity and absorption.
Pentylene Glycol
Est. %1
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.

Hydrolyzed Glycosaminoglycans
Est. %0.3
Function
Origin
Hydrolyzed Glycosaminoglycans
Sodium Ascorbyl Phosphate
Est. %0.3
Function
Origin
Sodium Ascorbyl PhosphateThe most researched derivative of vitamin C. It boosts collagen synthesis, thereby improving skin structure and elasticity. SAP is effective in the treatment of inflamed acne lesions and has a weak but positive effect on pigmentation issues.
Palmitoyl sh-Octapeptide-24 Amide
Est. %0.3
Function
Origin
Palmitoyl sh-Octapeptide-24 Amide
Palmitoyl Tripeptide-5
Est. %0.3
Function
Origin
Palmitoyl Tripeptide-5

A small synthetic peptide that signals the skin to produce more collagen. It has been clinically tested and proven to reduce skin roughness and the appearance of wrinkles.

Palmitoyl sh-Tripeptide-5 Norisoleucyl sh-Nonapeptide-1
Est. %0.3
Function
Origin
Palmitoyl sh-Tripeptide-5 Norisoleucyl sh-Nonapeptide-1
Glycyrrhiza Glabra (Licorice) Root Extract
Est. %0.3
Function
Origin
Glycyrrhiza Glabra (Licorice) Root ExtractAn extract from the licorice root. It contains a well-researched anti-inflammatory compound called glycyrrhizin that can reduce inflammation. Licorice root extract is also used for its powerful antioxidant effects and ability to treat pigmentation.
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.

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.

Hydrolyzed Hyaluronic Acid
Est. %0.3
Function
Origin
Hydrolyzed Hyaluronic AcidA smaller-molecule version of the regular hyaluronic acid. It is a powerful humectant that absorbs into the skin and offers moisturizing, smoothing, and anti-wrinkle effects. It is also slightly anti-inflammatory and displays subtle antioxidant properties.
Sodium Hyaluronate Crosspolymer
Est. %0.3
Function
Origin
Sodium Hyaluronate CrosspolymerA modified version of regular hyaluronic acid. It attracts large volumes of water, thereby making it an effective humectant moisturizing ingredient.
Lactic Acid/Glycolic Acid Copolymer
Est. %0.3
Function
Origin
Lactic Acid/Glycolic Acid Copolymer
Lecithin
Est. %0.3
Function
Origin
LecithinA humectant, emollient, and emulsifier best suited for water-in-oil emulsions. Lecithin can come from sunflowers, soy, and eggs. The downside to lecithin is that it causes an extra burden on the formula’s preservative because it is nutritious.
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.
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.
Hydroxyethylcellulose
Est. %0.3
Function
Origin
HydroxyethylcelluloseA naturally-derived thickener that can form clear gel textures without the slimy feeling, unlike some other natural gel-formers.
Lactic Acid
Est. %0.3
Function
Origin
Lactic AcidThe most popular AHA in skincare and less irritating than glycolic acid. It can be naturally found in sour milk. It is a humectant moisturizing, pH stabilizing, and gently exfoliating ingredient, able to soften dry, cracked, and peeling skin.
Sorbitol
Est. %0.3
Function
Origin
SorbitolA sweet-tasting alcohol derived from glucose. Aside from its sweet taste (for which it is used as a very common sweetener), Sorbitol is also very good at retaining water and is used in skincare as a humectant.
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.
Propanediol
Est. %0.3
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.
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.
Tetrasodium EDTA
Est. %0.3
Function
Origin
Tetrasodium EDTAOne of the most common synthetic chelators. It can reduce the 'hardness' of water and so is often used in rinse-off products.
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.
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.
Polyvinyl Alcohol
Est. %0.3
Function
Origin
Polyvinyl AlcoholA synthetic polymer that thickens water to form a gel and prevents other ingredients from separating.
Glyceryl Caprylate
Est. %0.3
Function
Origin
Glyceryl CaprylateA waxy solid derived from vegetable oils that has emollient and emulsifying properties. It is also known to boost the efficacy of organic acid preservatives by destabilizing the microbe's cell membrane.
Phenylpropanol
Est. %0.3
Function
Origin
PhenylpropanolPhenylpropanol is a naturally occurring component of many essential oils. It is a colourless, oily liquid with a sweet, floral, balsamic scent. It is used in skincare as a solvent for oil-soluble ingredients and as a fragrance component.