OSKIA Citylife Concentrate Face Serum Review

OSKIA Citylife Concentrate Face Serum
3.7
/ 10
Moisturizing
7.1 Humectancy icon Humectancy
0.3 Occlusivity icon Occlusivity
6Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Rich Skin Soothing icon
in Skin Soothers
Ingredients

OSKIA Citylife Concentrate Face Serum Ingredients

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Full Ingredient List (INCI):

Water, Niacinamide, Smithsonite Extract, Sodium Ascorbyl Phosphate, Dimethyl Sulfone, Cocoyl Proline, Haematococcus Pluvialis Extract, Ascorbyl Tetraisopalmitate, Sodium Hyaluronate, Propanediol, Ubiquinone, Glycerin, Ethylbisiminomethylguaiacol Manganese Chloride, Saccharomyces Ferment Lysate Filtrate, Tocopherol, Polysorbate 20, Lysolecithin, Malachite Extract, Sclerotium Gum, Eucalyptus Globulus Leaf Oil, Pullulan, Xanthan Gum, Ethylhexylglycerin, Camellia Japonica Flower Extract, Lecithin, Phenethyl Alcohol, Gluconolactone, Silica, Vegetable Oil, Sodium Benzoate, Limonene
Review

Does OSKIA Citylife Concentrate Face Serum Work?

 
According to CreamScan's analysis of the ingredient list, here’s what OSKIA Citylife Concentrate Face Serum has to offer:
 
✅ Light moisturizing. It has a moisturizing rating of 3.7 out of 10.
✅ Significant anti-wrinkle efficacy. With an anti-wrinkle rating of 6.0 out of 10, OSKIA Citylife Concentrate Face Serum is effective in minimizing wrinkles.
✅ Soothing: OSKIA Citylife Concentrate Face Serum contains a high concentration of soothing ingredients, which may help to reduce irritation and calm the skin.
✅ Antioxidant protection

  

Key Benefits of OSKIA Citylife Concentrate Face Serum

 
These are the key benefits you can expect from using OSKIA Citylife Concentrate Face Serum:
 

🔵 Lightweight Moisturizer Well-Suited for Oily Skin

According to CreamScan analysis, OSKIA Citylife Concentrate Face Serum is lightly moisturizing, with a moisturizing rating of 3.7 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 high humectancy of 7.1 out of 10, primarily due to the high content of Niacinamide (est. ≈5.0%).

This humectant-rich product, when used alone as a moisturizer, is well-suited for oily skin, providing moderate hydration in a lightweight, fast-absorbing formula with a minimal amount of occlusive ingredients.

It can also be a good option for people with normal skin who prefer lightweight moisturizers.

💧 A Humectant Enhancement for Any Skincare Routine

But it’s not limited to oily skin - such a humectant enhancement 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, OSKIA Citylife Concentrate Face Serum has a high anti-wrinkle rating of 6.0 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Niacinamide (est. ≈5.0%),
 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, OSKIA Citylife Concentrate Face Serum contains some ingredients often marketed as effective in reducing wrinkles, specifically Sodium Ascorbyl Phosphate, Ascorbyl Tetraisopalmitate, Ubiquinone, and Gluconolactone. However, the studies supporting the anti-wrinkle claims of these ingredients provide insufficient evidence of efficacy according to CreamScan Research Evaluation Standards.
 
While this does not categorically rule out the possibility that these ingredients may reduce wrinkles, their efficacy is not supported by convincing, vehicle-controlled, double-blind clinical studies - at least none that were available to the CreamScan team at the time of publication.
 
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 OSKIA Citylife Concentrate Face Serum is rich (> 3%) in antioxidants, specifically Niacinamide (est. ≈5.0%), Smithsonite Extract (est. ≈4.0%) and Sodium Ascorbyl Phosphate (est. ≈3.0%).

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, OSKIA Citylife Concentrate Face Serum is rich (> 5%) in soothing ingredients, particularly Niacinamide (est. ≈5.0%).

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 model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Pros & Cons of OSKIA Citylife Concentrate Face Serum

 
Here’s an overview of the pros and cons of OSKIA Citylife Concentrate Face Serum to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

✅ When used alone: Provides humectant-rich moisturizing well-suited for oily skin
✅ As part of a routine: A humectant moisturizing enhancement, beneficial for any skin type
✅ Lightweight texture
Delivers signficant anti-wrinkle efficacy thanks to Niacinamide
✅ Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage
✅ Potentially soothing, as it contains a high concentration of soothing Niacinamide
 

⭕ Cons: 

✅ We couldn't find any
   

Summary: OSKIA Citylife Concentrate Face Serum

 
Based on the ingredient list analysis, CreamScan AI suggests that OSKIA Citylife Concentrate Face Serum
 is specifically effective in treating wrinkles, containing ingredients with solid, robust evidence of anti-wrinkle efficacy.
 

When used alone, it delivers lightweight, humectant-rich moisturizing that is well-suited for oily skin. As part of a moisturizing routine, it provides a humectant enhancement, beneficial for all skin types.

Rich in antioxidants, OSKIA Citylife Concentrate Face Serum helps protect against free radical damage and offers multiple benefits for all skin types, including preventing premature aging, defending against environmental damage, and calming inflammation. This product is also formulated with a high concentration of soothing ingredients, offering the potential to calm and comfort irritated skin. Whether you’re experiencing redness, irritation, or general sensitivity, its soothing properties may help restore balance and provide relief.
 
📌 Fact check. At CreamScan, we are committed to accuracy and fairness. If you spot any errors or something that doesn’t seem right, please click here to let us know. We regularly update the ingredient lists and monitor the latest research on ingredient efficacy to ensure that our information remains as complete and precise as possible. The information provided here is for informational purposes only and does not substitute professional advice. We do not guarantee the efficacy or safety of any product, as individual results may vary.

 

Ingredient Breakdown

Est. % Ingredient Origin Functions
75
5
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
Est. %
Water
Function:
Origin:
Niacinamide
Function:
Origin:
Smithsonite Extract
Function:
Origin:
Sodium Ascorbyl Phosphate
Function:
Origin:
Dimethyl Sulfone
Function:
Origin:
Cocoyl Proline
Function:
Origin:
Haematococcus Pluvialis Extract
Function:
Origin:
Ascorbyl Tetraisopalmitate
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Propanediol
Function:
Origin:
Ubiquinone
Function:
Origin:
Glycerin
Function:
Origin:
Ethylbisiminomethylguaiacol Manganese Chloride
Function:
Origin:
Saccharomyces Ferment Lysate Filtrate
Function:
Origin:
Tocopherol
Function:
Origin:
Polysorbate 20
Function:
Origin:
Lysolecithin
Function:
Origin:
Malachite Extract
Function:
Origin:
Sclerotium Gum
Function:
Origin:
Eucalyptus Globulus Leaf Oil
Function:
Origin:
Pullulan
Function:
Origin:
Xanthan Gum
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Camellia Japonica Flower Extract
Function:
Origin:
Lecithin
Function:
Origin:
Phenethyl Alcohol
Function:
Origin:
Gluconolactone
Function:
Origin:
Silica
Function:
Origin:
Vegetable Oil
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Limonene
Function:
Origin:

Ratings

All humectants
7.1
5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.6
0.3
0.3
Benchmark
20
Moisturizing rating
3.7
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 7.1 10
7.1
5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.6 20
0.3
0.3
0.3
Moisturizing rating
3.7
Ingredient Est. % Benchmark Humectancy
5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 7.1 10
7.1
All humectants
7.1
5
0.3
0.3
0.3
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
6 /10 4 5 6
n/a
- 3 -
n/a
- 1 -
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. %
5
Sodium Ascorbyl Phosphate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
3
Ascorbyl Tetraisopalmitate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
1
Ubiquinone
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Gluconolactone
-
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
5
4
3
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 16.1 3 Rich in antioxidants
All antioxidants
16.1
Niacinamide
5
Smithsonite Extract
4
Sodium Ascorbyl Phosphate
3
Haematococcus Pluvialis Extract
1.3
Ascorbyl Tetraisopalmitate
1
Sodium Hyaluronate
0.3
Ubiquinone
0.3
Ethylbisiminomethylguaiacol Manganese Chloride
0.3
Tocopherol
0.3
Malachite Extract
0.3
Camellia Japonica Flower Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
5
All soothing 5 5 Rich in soothing
All soothing
5
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.
Niacinamide
Est. %5
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.

Smithsonite Extract
Est. %4
Function
Origin
Smithsonite Extract
Sodium Ascorbyl Phosphate
Est. %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.
Dimethyl Sulfone
Est. %2
Function
Origin
Dimethyl Sulfone
Cocoyl Proline
Est. %1.5
Function
Origin
Cocoyl Proline
Haematococcus Pluvialis Extract
Est. %1.3
Function
Origin
Haematococcus Pluvialis Extract
Ascorbyl Tetraisopalmitate
Est. %1
Function
Origin
Ascorbyl Tetraisopalmitate

Ascorbyl Tetraisopalmitate (ATIP) is an oil-soluble derivative of ascorbic acid, or vitamin C. It is more stable than ascorbic acid.

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.

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.
Ubiquinone
Est. %0.3
Function
Origin
UbiquinoneAlso known as Coenzyme Q10, this bright orange antioxidant supports the skin's energy metabolism. It also offers some anti-pigment action. Dietary supplementation of Ubiquinone improves the appearance of wrinkles.
Glycerin
Est. %0.3
Function
Origin
Glycerin

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

Ethylbisiminomethylguaiacol Manganese Chloride
Est. %0.3
Function
Origin
Ethylbisiminomethylguaiacol Manganese Chloride
Saccharomyces Ferment Lysate Filtrate
Est. %0.3
Function
Origin
Saccharomyces Ferment Lysate FiltrateA humectant moisturizing ingredient made from Saccharomyces yeast culture that contains various enzymes, amino acids, vitamins, and beta-glucan.
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.

Polysorbate 20
Est. %0.3
Function
Origin
Polysorbate 20A viscous, amber-colored liquid that functions as a solubilizer to disperse small amounts of oil into a large water phase. Polysorbate 20 is frequently used to solubilize fragrance oils into water-based emulsions.
Lysolecithin
Est. %0.3
Function
Origin
LysolecithinLysolecithin is a special derivative of lecithin with improved emulsifying and dispersion properties in aqueous media. This leads to a higher water-binding capacity and better skin feeling. It is usually manufactured from soy lecithin and used as an emulsifying agent.
Malachite Extract
Est. %0.3
Function
Origin
Malachite Extract
Sclerotium Gum
Est. %0.3
Function
Origin
Sclerotium GumA thickener with a silky, velvety feel that many manufacturers use as an alternative to silicones.
Eucalyptus Globulus Leaf Oil
Est. %0.3
Function
Origin
Eucalyptus Globulus Leaf OilAn essential oil extracted from the leaves of the Eucalyptus globulus, a tall, evergreen, Australian tree with waxy leaves. It mostly consists of cineole – which has potent antimicrobial and anti-inflammatory activity.
Pullulan
Est. %0.3
Function
Origin
Pullulan
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.
Camellia Japonica Flower Extract
Est. %0.3
Function
Origin
Camellia Japonica Flower ExtractAn extract obtained from the flowers of the Japanese camellia. It is rich in antioxidant flavonoids and anthocyanins.
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.
Phenethyl Alcohol
Est. %0.3
Function
Origin
Phenethyl AlcoholA multifunctional ingredient that primarily serves as a preservative. Derived from the Chinese cinnamon tree, it provides broad-spectrum protection for skincare products through its antimicrobial efficacy.
Gluconolactone
Est. %0.3
Function
Origin
GluconolactoneA PHA derived from glucose. It has exfoliating and humectant properties and acts as a penetration enhancer for other ingredients. It has also been shown to assist in the treatment of acne and the prevention of photoaging.
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.
Vegetable Oil
Est. %0.3
Function
Origin
Vegetable OilAn occlusive moisturizing and emollient fatty oil obtained from various plant sources. It consists mainly of triglycerides and saturated or unsaturated fatty acids.
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.
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.