OSKIA Retinoid Sleep Serum Level 1 Review

OSKIA Retinoid Sleep Serum Level 1
1.8
/ 10
Moisturizing
0.6 Humectancy icon Humectancy
3.0 Occlusivity icon Occlusivity
Rich
in Antioxidants
Ingredients

OSKIA Retinoid Sleep Serum Level 1 Ingredients

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Full Ingredient List (INCI):

C13-15 Alkane, Dimethyl Isosorbide, Sorbitan Isostearate, Cocoyl Proline, Octyldodecanol, Caprylic/Capric Triglyceride, Ascorbyl Tetraisopalmitate, Helianthus Annuus (Sunflower) Seed Oil, Echium Plantagineum Seed Oil, Ubiquinone, Curcuma Longa (Turmeric) Root Extract, Alaria Esculenta Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Cardiospermum Halicacabum Flower/Leaf/Vine Extract, Helianthus Annuus (Sunflower) Seed Oil Unsaponifiables, 7-Dehydrocholesterol, Tocopherol, Hydroxypinacolone Retinoate, Vegetable Oil, Lecithin, Glycerin, Water, Sodium Benzoate
Review

Does OSKIA Retinoid Sleep Serum Level 1 Work?

 
According to CreamScan's analysis of the ingredient list, here’s what OSKIA Retinoid Sleep Serum Level 1 has to offer:
 
✅ A bit of moisturizing. It has a moisturizing rating of 1.8 out of 10.
✅ Antioxidant protection

  

Key Benefits of OSKIA Retinoid Sleep Serum Level 1

 
These are the key benefits you can expect from using OSKIA Retinoid Sleep Serum Level 1:
 

🔵 Slight Moisturizing When Used Alone

According to CreamScan analysis, OSKIA Retinoid Sleep Serum Level 1 is slightly moisturizing, with a moisturizing rating of 1.8 out of 10.

Is it more humectant or occlusive? Rather occlusive. It has a low humectancy of 0.6 out of 10 and a moderate occlusivity of 3.0 out of 10, primarily due to the high content of Caprylic/Capric Triglyceride (est. ≈3.0%).

This type of product provides relatively light moisturizing on its own but can contribute to overall moisturizing efficacy when used as part of a skincare routine, alongside another moisturizer.

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

🍀 Rich in Skin-Protecting Antioxidants

We estimate that OSKIA Retinoid Sleep Serum Level 1 is rich (> 3%) in antioxidants, specifically Ascorbyl Tetraisopalmitate (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.

📌 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.

Things to Be Aware Of: OSKIA Retinoid Sleep Serum Level 1

 
CreamScan identified a few things to consider before adding OSKIA Retinoid Sleep Serum Level 1 to your skincare routine:
 

⚠️ As a Standalone Moisturizer, It Has Relatively Low Moisturizing Potential

If you use OSKIA Retinoid Sleep Serum Level 1 for moisturizing purposes, please keep in mind that it provides relatively light moisturizing on its own, and, more importantly, it’s not optimal for any skin type.

On one hand, it has low occlusivity, which suits oily and combination skin. On the other hand, it has a low estimated concentration of humectants, which are essential for effective moisturizing of all skin types, including oily skin.

Therefore, if used as a standalone moisturizer, this product should be paired with a humectant-rich moisturizer for optimal skin hydration.

⚠️ Questionable anti-wrinkle efficacy

If one of your main reasons for choosing OSKIA Retinoid Sleep Serum Level 1 is its potential anti-aging effects, please note that, according to CreamScan analysis, it currently has a zero anti-wrinkle rating.

It contains some ingredients often marketed as effective in reducing wrinkles, specifically Ascorbyl Tetraisopalmitate, Ubiquinone, and Hydroxypinacolone Retinoate. 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 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 OSKIA Retinoid Sleep Serum Level 1

 
Here’s an overview of the pros and cons of OSKIA Retinoid Sleep Serum Level 1 to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

Provides relatively light moisturizing on its own but can contribute to the moisturizing efficacy of any skincare routine
✅ Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage
 

⭕ Cons: 

⚠️ Minimal moisturizing efficacy, even for oily skin - something to keep in mind if this is the only moisturizer in your routine
⚠️ Questionable anti-wrinkle efficacy
   

Summary: OSKIA Retinoid Sleep Serum Level 1

 
Based on the ingredient list analysis, CreamScan AI suggests that OSKIA Retinoid Sleep Serum Level 1
, as a moisturizer, provides relatively light hydration on its own but can enhance the moisturizing efficacy of any skincare routine.
 
With its high antioxidant content, OSKIA Retinoid Sleep Serum Level 1 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.
 
That said, there are some things about OSKIA Retinoid Sleep Serum Level 1 worth noting.
 
If you use OSKIA Retinoid Sleep Serum Level 1 as your primary moisturizer, please keep in mind that it provides only light hydration, which isn’t actually ideal for any skin type. While its low occlusivity may work for oily and combination skin, it lacks sufficient humectants, which are vital for effective hydration of any skin type. Therefore, for optimal moisturizing results, it should be paired with a humectant-rich moisturizer.
 
If one of your main reasons for considering OSKIA Retinoid Sleep Serum Level 1 is its potential anti-aging effects, please note that, according to CreamScan analysis, its anti-wrinkle efficacy is questionable. None of the ingredients in this product provide substantial evidence of their anti-wrinkle efficacy according to CreamScan Research Evaluation Standards.
 
📌 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
50
22
6.5
6
4
3
2
1.5
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.3
0.3
0.3
0.3
0.3
Est. %
C13-15 Alkane
Function:
Origin:
Dimethyl Isosorbide
Function:
Origin:
Sorbitan Isostearate
Function:
Origin:
Cocoyl Proline
Function:
Origin:
Octyldodecanol
Function:
Origin:
Caprylic/Capric Triglyceride
Function:
Origin:
Ascorbyl Tetraisopalmitate
Function:
Origin:
Helianthus Annuus (Sunflower) Seed Oil
Function:
Origin:
Echium Plantagineum Seed Oil
Function:
Origin:
Ubiquinone
Function:
Origin:
Curcuma Longa (Turmeric) Root Extract
Function:
Origin:
Alaria Esculenta Extract
Function:
Origin:
Rosmarinus Officinalis (Rosemary) Leaf Extract
Function:
Origin:
Cardiospermum Halicacabum Flower/Leaf/Vine Extract
Function:
Origin:
Helianthus Annuus (Sunflower) Seed Oil Unsaponifiables
Function:
Origin:
7-Dehydrocholesterol
Function:
Origin:
Tocopherol
Function:
Origin:
Hydroxypinacolone Retinoate
Function:
Origin:
Vegetable Oil
Function:
Origin:
Lecithin
Function:
Origin:
Glycerin
Function:
Origin:
Water
Function:
Origin:
Sodium Benzoate
Function:
Origin:

Ratings

All humectants
0.6
0.3
0.3
Benchmark
10
All occlusives
6.1
3.0
1.5
1.0
0.3
0.3
Benchmark
20
Moisturizing rating
1.8
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 0.6 10
0.6
0.3
0.3
Occlusivity All occlusives 6.1 20
3.0
3.0
1.5
1.0
0.3
0.3
Moisturizing rating
1.8
Ingredient Est. % Benchmark Humectancy
0.3
0.3
All humectants 0.6 10
0.6
All humectants
0.6
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
3
1.5
1
0.3
0.3
All occlusives 6.1 20
3.0
All occlusives
6.1
3.0
1.5
1.0
0.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
n/a
- 2 -
n/a
- 0.3 -
n/a
- 0.2 -
Total
0
Ascorbyl Tetraisopalmitate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
2
Ubiquinone
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Hydroxypinacolone Retinoate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.2
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
2
0.3
0.3
0.3
0.3
0.2
All antioxidants 3.4 3 Rich in antioxidants
All antioxidants
3.4
Ascorbyl Tetraisopalmitate
2
Ubiquinone
0.3
Curcuma Longa (Turmeric) Root Extract
0.3
Rosmarinus Officinalis (Rosemary) Leaf Extract
0.3
Tocopherol
0.3
Hydroxypinacolone Retinoate
0.2
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
0.3
0.3
All soothing 1.2 5 No
All soothing
1.2
0.3
0.3
0.3
0.3
Benchmark
5

Ingredients explained

C13-15 Alkane
Est. %50
Function
Origin
C13-15 Alkane
Dimethyl Isosorbide
Est. %22
Function
Origin
Dimethyl IsosorbideA solvent for active ingredients that is claimed to help them better penetrate the outer layer of skin. It also helps to reduce the thickness of a product.
Sorbitan Isostearate
Est. %6.5
Function
Origin
Sorbitan IsostearateA mild yet powerful emulsifier primarily utilized to produce water-in-oil emulsions. It helps to create a particularly rich and substantial emulsion.
Cocoyl Proline
Est. %6
Function
Origin
Cocoyl Proline
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/Capric Triglyceride
Est. %3
Function
Origin
Caprylic/Capric TriglycerideA natural occlusive moisturizing and emollient ingredient, it is a blend of glycerin and two fatty acids, caprylic and capric acid. It creates an oil-based protective layer on the skin, thereby preventing water loss.
Ascorbyl Tetraisopalmitate
Est. %2
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.

Helianthus Annuus (Sunflower) Seed Oil
Est. %1.5
Function
Origin
Helianthus Annuus (Sunflower) Seed OilA fatty oil expressed from sunflower seeds and one of the most commonly used oils in skincare. It has great emollient and occlusive moisturizing properties. Sunflower oil is one of the richest sources of vitamin E – an important skin antioxidant.
Echium Plantagineum Seed Oil
Est. %1
Function
Origin
Echium Plantagineum Seed OilAn emollient and occlusive oil from the Purple Viper’s Bugloss plant. It contains oleic, linoleic, alpha-linolenic acids, as well as very rare polyunsaturated called stearidonic acid. It is suitable for all skin types.
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.
Curcuma Longa (Turmeric) Root Extract
Est. %0.3
Function
Origin
Curcuma Longa (Turmeric) Root ExtractAn extract derived from the thick roots of curcuma (turmeric), a famous yellow spice and a major ingredient in curry powder. It is used in skincare for its proven antioxidant and anti-inflammatory properties.
Alaria Esculenta Extract
Est. %0.3
Function
Origin
Alaria Esculenta ExtractDerived from badderlocks, an edible seaweed, this extract is rich in film-forming alginates. It can be used as a formula helper.
Rosmarinus Officinalis (Rosemary) Leaf Extract
Est. %0.3
Function
Origin
Rosmarinus Officinalis (Rosemary) Leaf ExtractA soothing and astringent extract derived from the fragrant, spicy leaves of rosemary. It has strong antioxidant properties. Rosemary extract can reduce signs of inflammation and also acts as an emollient and antimicrobial agent.
Cardiospermum Halicacabum Flower/Leaf/Vine Extract
Est. %0.3
Function
Origin
Cardiospermum Halicacabum Flower/Leaf/Vine ExtractA soothing extract obtained from the balloon plant. It has plenty of anti-inflammatory flavonoids, phytosterols, and phenolic compounds.
Helianthus Annuus (Sunflower) Seed Oil Unsaponifiables
Est. %0.3
Function
Origin
Helianthus Annuus (Sunflower) Seed Oil UnsaponifiablesA strongly emollient and occlusive moisturizing fraction of sunflower oil that consists of waxes, sterols, phospholipids, and vitamin E.
7-Dehydrocholesterol
Est. %0.3
Function
Origin
7-Dehydrocholesterol
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.

Hydroxypinacolone Retinoate
Est. %0.2
Function
Origin
Hydroxypinacolone RetinoateThe newest derivative of vitamin A with improved stability, less irritation, and (allegedly) direct vitamin A action. Studies recommend it for acne treatment and collagen-boosting effects.
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.
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.
Glycerin
Est. %0.3
Function
Origin
Glycerin

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

Water
Est. %0.3
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.
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.