Hyeja Vitamin C Brightening Serum Review

Hyeja Vitamin C Brightening Serum
3.8
/ 10
Moisturizing
7.3 Humectancy icon Humectancy
0.3 Occlusivity icon Occlusivity
2.2Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Ingredients

Hyeja Vitamin C Brightening Serum Ingredients

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Full Ingredient List (INCI):

Citrus Junos Fruit Extract, Camellia Sinensis Leaf Water, Butylene Glycol, Water, Dipropylene Glycol, Niacinamide, 1,2-Hexanediol, 3-O-Ethyl Ascorbic Acid, Citrus Junos Peel Oil, Panax Ginseng Root Water, Polyglyceryl-10 Myristate, Centella Asiatica Extract, Saccharum Officinarum (Sugarcane) Extract, Tocopherol, Houttuynia Cordata Extract, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Ceramide NP, Camellia Sinensis Leaf Extract, Acrylates Copolymer, Tromethamine, Sodium Polyacrylate, Adenosine, Sodium Phytate, Sorbitan Isostearate, Glycerin, Chamomilla Recutita (Matricaria) Flower Extract, Portulaca Oleracea Extract, Betula Alba Juice, Simmondsia Chinensis (Jojoba) Seed Oil, Maltodextrin, Saccharide Hydrolysate, Ethylhexylglycerin, Limonene
Review

Does Hyeja Vitamin C Brightening Serum Work?

 
According to CreamScan's analysis of the ingredient list, here’s what Hyeja Vitamin C Brightening Serum has to offer:
 
✅ Light moisturizing. It has a moisturizing rating of 3.8 out of 10.
✅ Modest anti-wrinkle efficacy: Hyeja Vitamin C Brightening Serum has an anti-wrinkle rating of 2.2 out of 10 so you may expect some, although limited, effect on wrinkles.
✅ Antioxidant protection

  

Key Benefits of Hyeja Vitamin C Brightening Serum

 
These are the key benefits you can expect from using Hyeja Vitamin C Brightening Serum:
 

🔵 Lightweight Moisturizer Well-Suited for Oily Skin

According to CreamScan analysis, Hyeja Vitamin C Brightening Serum is lightly moisturizing, with a moisturizing rating of 3.8 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 high humectancy of 7.3 out of 10, primarily due to the high content of Butylene Glycol (est. ≈4.0%).

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.

🟣 Modest Anti-Wrinkle Efficacy

According to CreamScan analysis, Hyeja Vitamin C Brightening Serum has a modest level of anti-wrinkle efficacy, rated 2.2 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Niacinamide (est. ≈1.5%),
 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, Hyeja Vitamin C Brightening Serum contains some ingredients often marketed as effective in reducing wrinkles, specifically 3-O-Ethyl Ascorbic Acid, Centella Asiatica Extract, Camellia Sinensis Leaf Extract, and Adenosine. 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.
 
📌 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 additional anti-wrinkle effects through its moisturizing action.
 

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

🍀 Rich in Skin-Protecting Antioxidants

We estimate that Hyeja Vitamin C Brightening Serum is rich (> 3%) in antioxidants, specifically Citrus Junos Fruit Extract (est. ≈75.0%).

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.

Pros & Cons of Hyeja Vitamin C Brightening Serum

 
Here’s an overview of the pros and cons of Hyeja Vitamin C Brightening 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
Offers modest anti-wrinkle efficacy
✅ Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage
 

⭕ Cons: 

✅ We couldn't find any
   

Summary: Hyeja Vitamin C Brightening Serum

 
Based on the ingredient list analysis, CreamScan AI suggests that Hyeja Vitamin C Brightening Serum
, when used alone, 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.
 
Hyeja Vitamin C Brightening Serum contains ingredients with proven evidence of anti-wrinkle efficacy that may provide a modest anti-wrinkle effect. As a result, you can expect a positive, though not very significant, impact on wrinkles.
 
With its high antioxidant content, Hyeja Vitamin C Brightening 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.
 
📌 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
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
Est. %
Citrus Junos Fruit Extract
Function:
Origin:
Camellia Sinensis Leaf Water
Function:
Origin:
Butylene Glycol
Function:
Origin:
Water
Function:
Origin:
Dipropylene Glycol
Function:
Origin:
Niacinamide
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
3-O-Ethyl Ascorbic Acid
Function:
Origin:
Citrus Junos Peel Oil
Function:
Origin:
Panax Ginseng Root Water
Function:
Origin:
Polyglyceryl-10 Myristate
Function:
Origin:
Centella Asiatica Extract
Function:
Origin:
Saccharum Officinarum (Sugarcane) Extract
Function:
Origin:
Tocopherol
Function:
Origin:
Houttuynia Cordata Extract
Function:
Origin:
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Function:
Origin:
Ceramide NP
Function:
Origin:
Camellia Sinensis Leaf Extract
Function:
Origin:
Acrylates Copolymer
Function:
Origin:
Tromethamine
Function:
Origin:
Sodium Polyacrylate
Function:
Origin:
Adenosine
Function:
Origin:
Sodium Phytate
Function:
Origin:
Sorbitan Isostearate
Function:
Origin:
Glycerin
Function:
Origin:
Chamomilla Recutita (Matricaria) Flower Extract
Function:
Origin:
Portulaca Oleracea Extract
Function:
Origin:
Betula Alba Juice
Function:
Origin:
Simmondsia Chinensis (Jojoba) Seed Oil
Function:
Origin:
Maltodextrin
Function:
Origin:
Saccharide Hydrolysate
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Limonene
Function:
Origin:

Ratings

All humectants
7.3
4
1.5
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
3.8
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 7.3 10
7.3
4
1.5
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
3.8
Ingredient Est. % Benchmark Humectancy
4
1.5
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 7.3 10
7.3
All humectants
7.3
4
1.5
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 1.5 2.2
n/a
- 1 -
n/a
- 0.3 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
2.2
Niacinamide
2.2
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
1.5
3-O-Ethyl Ascorbic Acid
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
1
Centella Asiatica Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Camellia Sinensis Leaf Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Adenosine
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
2.2
Ingredient Est. % Benchmark
Rich in Antioxidants
75
1.5
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 79.6 3 Rich in antioxidants
All antioxidants
79.6
Citrus Junos Fruit Extract
75
Niacinamide
1.5
3-O-Ethyl Ascorbic Acid
1
Centella Asiatica Extract
0.3
Saccharum Officinarum (Sugarcane) Extract
0.3
Tocopherol
0.3
Houttuynia Cordata Extract
0.3
Camellia Sinensis Leaf Extract
0.3
Chamomilla Recutita (Matricaria) Flower Extract
0.3
Portulaca Oleracea Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
1.5
0.3
0.3
0.3
0.3
0.3
All soothing 3 5 No
All soothing
3
1.5
0.3
0.3
0.3
0.3
0.3
Benchmark
5

Ingredients explained

Citrus Junos Fruit Extract
Est. %75
Function
Origin
Citrus Junos Fruit Extract

An extract from Yuzu (a citrus hybrid) which contains antioxidant and anti-inflammatory flavonoids.

Camellia Sinensis Leaf Water
Est. %6
Function
Origin
Camellia Sinensis Leaf Water
Butylene Glycol
Est. %4
Function
Origin
Butylene Glycol

A clear, colorless liquid humectant that draws moisture to the skin. The humectancy of butylene glycol, owed to its two hydroxyl groups, is quite considerable, although not as powerful as glycerin, which contains three hydroxyl groups.

Water
Est. %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.
Dipropylene Glycol
Est. %2
Function
Origin
Dipropylene GlycolA clear, colorless liquid that has several uses. One of its main functions is as a solvent. Dipropylene glycol is also used to reduce the thickness of skincare products.
Niacinamide
Est. %1.5
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.

1,2-Hexanediol
Est. %1.3
Function
Origin
1,2-HexanediolA multi-functional formula helper. It is a well-studied preservtive against bacteria and can help pigments and fragrances disperse evenly in a formula.
3-O-Ethyl Ascorbic Acid
Est. %1
Function
Origin
3-O-Ethyl Ascorbic AcidA derivative of vitamin C. Its stability in skincare formulations is better than ascorbic acid’s, although clinical studies are yet to indicate whether it has the same collagen-boosting benefits.
Citrus Junos Peel Oil
Est. %0.3
Function
Origin
Citrus Junos Peel Oil
Panax Ginseng Root Water
Est. %0.3
Function
Origin
Panax Ginseng Root Water
Polyglyceryl-10 Myristate
Est. %0.3
Function
Origin
Polyglyceryl-10 MyristateA solubilizer that can help incorporate small amounts of oil to an otherwise watery product while providing lightweight skin feel.
Centella Asiatica Extract
Est. %0.3
Function
Origin
Centella Asiatica ExtractAn extract from the leaves of the Gotu kola. It is used in skincare for its antioxidant, wound healing, anti-inflammatory, and anti-aging properties. It increases the production of collagen and hyaluronic acid in the skin.
Saccharum Officinarum (Sugarcane) Extract
Est. %0.3
Function
Origin
Saccharum Officinarum (Sugarcane) ExtractAn antioxidant extract from sugarcane, the famous crop used to make sugar. It acts as a humectant and exfoliating agent – the little sugar crystals mechanically remove dead skin cells from the skin’s surface.
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.

Houttuynia Cordata Extract
Est. %0.3
Function
Origin
Houttuynia Cordata ExtractAn extract from a herbaceous plant fish leaf. It contains various antioxidant and anti-inflammatory compounds. It shows interesting antimicrobial potential due to its unique phytochemical composition.
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.
Ceramide NP
Est. %0.3
Function
Origin
Ceramide NPAlso known as ceramide 3, it is the most common ceramide in our skin. It helps to restore the skin’s lipid barrier and alleviate the symptoms of dry and cracked skin. Research has shown that skin suffering from conditions such as AD lacks ceramides.
Camellia Sinensis Leaf Extract
Est. %0.3
Function
Origin
Camellia Sinensis Leaf Extract

An antioxidant green tea extract. In the deeper layers, it slows down the destruction of collagen, elastin, and hyaluronic acid – thus delaying the signs of aging. It also acts as an anti-acne, soothing, moisturizing, and emollient ingredient.

Acrylates Copolymer
Est. %0.3
Function
Origin
Acrylates CopolymerA highly functional synthetic ingredient that forms a protective layer on the skin and reduces static buildup. It gives an emollient feel to the product, including a silky after-feel.
Tromethamine
Est. %0.3
Function
Origin
TromethamineAn ingredient based on amino acids that is commonly used as a pH adjuster. It has a high pH, which means that it is basic (alkaline), so adding tromethamine to a skincare product will increase its overall pH level.
Sodium Polyacrylate
Est. %0.3
Function
Origin
Sodium PolyacrylateThis white powder is primarily used as a viscosity controlling agent. It is added to the water phase, which then thickens to form a clear gel. Sodium polyacrylate can also serve as an emollient, absorbent, and emulsion stabilizer.
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.

Sodium Phytate
Est. %0.3
Function
Origin
Sodium PhytateSodium phytate is a chelating agent that serves to remove heavy metal ions from water. Removing metal ions helps other ingredients, such as antioxidants and preservatives, to perform better and keep products from separating.
Sorbitan Isostearate
Est. %0.3
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.
Glycerin
Est. %0.3
Function
Origin
Glycerin

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

Chamomilla Recutita (Matricaria) Flower Extract
Est. %0.3
Function
Origin
Chamomilla Recutita (Matricaria) Flower ExtractDerived from German chamomile flowers, this extract is especially known for its anti-inflammatory and soothing benefits. It contains two soothing compounds called chamazulene and bisabolol, as well as antioxidant flavonoids.
Portulaca Oleracea Extract
Est. %0.3
Function
Origin
Portulaca Oleracea ExtractDerived from green or common purslane, this moisturizing extract is particularly rich in alpha-linolenic acid, an omega-3 fatty acid, and contains antioxidant glutathione and vitamin E. As a herbal medicine, it is believed to treat headaches and inflammation.
Betula Alba Juice
Est. %0.3
Function
Origin
Betula Alba Juice
Simmondsia Chinensis (Jojoba) Seed Oil
Est. %0.3
Function
Origin
Simmondsia Chinensis (Jojoba) Seed OilA liquid plant wax, also known as Jojoba oil, pressed from the seeds of Simmondsia chinensis. These seeds can contain up to 50% of liquid wax. It is used as an occlusive moisturizer, emollient, and emulsifier.
Maltodextrin
Est. %0.3
Function
Origin
MaltodextrinA formula helper manufactured from starch. It has a sweet flavor and is often used in rinse-off products to support their foaming structure. Maltodextrin is also used to stabilize emulsions and to absorb and bind other ingredients in the formula.
Saccharide Hydrolysate
Est. %0.3
Function
Origin
Saccharide Hydrolysate
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.
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.