OSKIA Citylife Concentrate Face Serum

OSKIA Citylife Concentrate Face Serum
3.7
/ 10
Moisturizing
7.1 Humectancy icon Humectancy
0.3 Occlusivity icon Occlusivity
8Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Rich Skin Soothing icon
in Skin Soothers
$$$$

Review

Results you may expect from using OSKIA Citylife Concentrate Face Serum:

Based on the ingredient analysis by CreamScan, these are the key benefits you can expect from using OSKIA Citylife Concentrate Face Serum:

  • Light moisturizing. It has a moisturizing rating of 3.7 out of 10.
  • Potent anti-wrinkle effect. With an anti-wrinkle rating of 8.0 out of 10, OSKIA Citylife Concentrate Face Serum is highly potent in reducing 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.

How moisturizing is it?

Lightly moisturizing: OSKIA Citylife Concentrate Face Serum has 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%).

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

Anti-wrinkle efficacy

According to CreamScan analysis, OSKIA Citylife Concentrate Face Serum has a very high anti-wrinkle rating of 8.0 out of 10.

It contains 2 active ingredients with proven anti-wrinkle efficacy:

  • Niacinamide (est. ≈5.0%),
    one of the most effective and well-researched anti-wrinkle ingredients.
  • Ascorbyl Tetraisopalmitate (est. ≈1.0%),
    the only derivative of Ascorbic acid with confirmed anti-wrinkle efficacy. This ingredient has below-average efficacy, proven by one study.
Among others, OSKIA Citylife Concentrate Face Serum also contains some ingredients marketed as effective in reducing wrinkles, specifically Sodium Ascorbyl Phosphate, 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. 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.

Antioxidant benefits

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

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.

Ingredients

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
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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 Occlusivity
0.3
0.3
All occlusives 0.6 20
0.3
All occlusives
0.6
0.3
0.3
Benchmark
20
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
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
6 /10 4 5 6
2 /10 1 1 2
n/a
- 3 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
8
Niacinamide
6
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
5
Ascorbyl Tetraisopalmitate
2
Ingredient anti-wrinkle power
2 /10
when present at, %
1
in this formula, est. %
1
Sodium Ascorbyl Phosphate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
3
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
8
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 Rating
5
All soothing 5 5 Rich in soothing
All soothing
5
5
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.
Niacinamide
Est. %5
Function
Origin

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
Description is coming soon
Sodium Ascorbyl Phosphate
Est. %3
Function
Origin
The 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
Description is coming soon
Cocoyl Proline
Est. %1.5
Function
Origin
Description is coming soon
Haematococcus Pluvialis Extract
Est. %1.3
Function
Origin
Description is coming soon
Ascorbyl Tetraisopalmitate
Est. %1
Function
Origin
Ascorbyl Tetraisopalmitate (ATIP) is an oil-soluble derivative of ascorbic acid, or vitamin C. It is more stable than ascorbic acid, with studies supporting its collagen-boosting and anti-pigment effects.
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.
Propanediol
Est. %0.3
Function
Origin
An 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
Also 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

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
Description is coming soon
Saccharomyces Ferment Lysate Filtrate
Est. %0.3
Function
Origin
A humectant moisturizing ingredient made from Saccharomyces yeast culture that contains various enzymes, amino acids, vitamins, and beta-glucan.
Tocopherol
Est. %0.3
Function
Origin
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
A 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
Lysolecithin 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
Description is coming soon
Sclerotium Gum
Est. %0.3
Function
Origin
A thickener with a silky, velvety feel that many manufacturers use as an alternative to silicones.
Eucalyptus Globulus Leaf Oil
Est. %0.3
Function
Origin
An 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
Description is coming soon
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.
Ethylhexylglycerin
Est. %0.3
Function
Origin
A 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
An extract obtained from the flowers of the Japanese camellia. It is rich in antioxidant flavonoids and anthocyanins.
Lecithin
Est. %0.3
Function
Origin
A 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
A 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
A 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
A 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
An 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
A 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
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.