Hanyul Moonlight Citron C Serum Review

Hanyul Moonlight Citron C Serum
5.9
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
1.8 Occlusivity icon Occlusivity
3.1Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Review

Does Hanyul Moonlight Citron C Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Hanyul Moonlight Citron C Serum has to offer:
 
  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.9 out of 10.
  • Modest anti-wrinkle efficacy: Hanyul Moonlight Citron C Serum has an anti-wrinkle rating of 3.1 out of 10 so you may expect some, although limited, effect on wrinkles.
  • Antioxidant protection.

Key Benefits of Hanyul Moonlight Citron C Serum

 
These are the key benefits you can expect from using Hanyul Moonlight Citron C Serum:
 

Lightweight Humectant Moisturizer Ideal for Oily Skin

According to CreamScan analysis, Hanyul Moonlight Citron C Serum is quite moisturizing, with a moisturizing rating of 5.9 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a low occlusivity of 1.8 out of 10 and a maximum humectancy of 10 out of 10, primarily due to the high content of Butylene Glycol (est. ≈6.0%), Glycerin (est. ≈4.0%) and Niacinamide (est. ≈2.0%).

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

It’s also a great choice for people with normal skin who prefer lightweight moisturizers.

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.

Modest Anti-Wrinkle Efficacy

According to CreamScan analysis, Hanyul Moonlight Citron C Serum has a modest level of anti-wrinkle efficacy, rated 3.1 out of 10.

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

  • Niacinamide (est. ≈2.0%),
     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).
  • Ascorbic Acid (est. ≈0.3%),
     or Vitamin C, a popular ingredient, yet with moderate anti-wrinkle efficacy, as confirmed by a single clinical study involving 20 participants (Humbert et al.). This study showed that a cream with a relatively high concentration of 5% ascorbic acid reduced the average wrinkle depth by 7% after 6 months of use, compared to a vehicle (the same formulation without ascorbic acid).
Among others, Hanyul Moonlight Citron C Serum also contains Adenosine, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Adenosine provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards. Therefore, this ingredient does 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 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 Hanyul Moonlight Citron C Serum is rich (> 3%) in antioxidants, specifically Niacinamide (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 AI model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Pros & Cons of Hanyul Moonlight Citron C Serum

 
Here’s an overview of the pros and cons of Hanyul Moonlight Citron C Serum to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • When used alone: Provides humectant-rich moisturizing ideal for oily skin
  • As part of a routine: A humectant moisturizing boost, 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

Ingredients

Est. % Ingredient Origin Functions
75
6
4
3
2
1.5
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:
Butylene Glycol
Function:
Origin:
Glycerin
Function:
Origin:
Caprylic/Capric Triglyceride
Function:
Origin:
Niacinamide
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Angelica Archangelica Root Oil
Function:
Origin:
Behenyl Alcohol
Function:
Origin:
Panthenol
Function:
Origin:
Helianthus Annuus (Sunflower) Seed Oil
Function:
Origin:
Limonene
Function:
Origin:
Citrus Limon (Lemon) Peel Oil
Function:
Origin:
Tromethamine
Function:
Origin:
Carbomer
Function:
Origin:
Lauryl Acrylate
Function:
Origin:
Daucus Carota Sativa (Carrot) Root Extract
Function:
Origin:
Taurine
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Adenosine
Function:
Origin:
Citrine Extract
Function:
Origin:
Disodium EDTA
Function:
Origin:
Linalool
Function:
Origin:
Ethyl Ether
Function:
Origin:
Citrus Tangerina (Tangerine) Extract
Function:
Origin:
Beta-Carotene (CI 40800)
Function:
Origin:
Tocopherol
Function:
Origin:
Ascorbic Acid
Function:
Origin:
Citrus Limon (Lemon) Peel Extract
Function:
Origin:

Ratings

All humectants
12.6
6
4
2
0.3
0.3
Benchmark
10
All occlusives
3.6
3.0
0.3
0.3
Benchmark
20
Moisturizing rating
5.9
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 12.6 10
10.0
6
4
2
0.3
0.3
Occlusivity All occlusives 3.6 20
1.8
3.0
0.3
0.3
Moisturizing rating
5.9
Ingredient Est. % Benchmark Humectancy
6
4
2
0.3
0.3
All humectants 12.6 10
10
All humectants
12.6
6
4
2
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
3
0.3
0.3
All occlusives 3.6 20
1.8
All occlusives
3.6
3.0
0.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
6 /10 4 2 3
2.5 /10 5 0.3 0.1
n/a
- 0.3 -
Total
3.1
Niacinamide
3
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
2
Ascorbic Acid
0.1
Ingredient anti-wrinkle power
2.5 /10
when present at, %
5
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
3.1
Ingredient Est. % Benchmark
Rich in Antioxidants
2
0.3
0.3
0.3
0.3
0.3
All antioxidants 3.5 3 Rich in antioxidants
All antioxidants
3.5
Niacinamide
2
Ascorbic Acid
0.3
Daucus Carota Sativa (Carrot) Root Extract
0.3
Beta-Carotene (CI 40800)
0.3
Tocopherol
0.3
Citrus Limon (Lemon) Peel Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
2
0.3
All soothing 2.3 5 No
All soothing
2.3
2
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.
Butylene Glycol
Est. %6
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.

Glycerin
Est. %4
Function
Origin
Glycerin

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

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.
Niacinamide
Est. %2
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. %1.5
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.
Angelica Archangelica Root Oil
Est. %0.3
Function
Origin
Angelica Archangelica Root Oil
Behenyl Alcohol
Est. %0.3
Function
Origin
Behenyl AlcoholA fatty alcohol with emollient properties. It is used as a co-emulsifier and thickener and tends to result in a product with a smooth and creamy application texture.
Panthenol
Est. %0.3
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.
Helianthus Annuus (Sunflower) Seed Oil
Est. %0.3
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.
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.

Citrus Limon (Lemon) Peel Oil
Est. %0.3
Function
Origin
Citrus Limon (Lemon) Peel Oil

A fragrant essential oil extracted from the rind or peel of a lemon. It is mainly comprised of limonene (up to 70%) and has a fresh, citrusy scent. Lemon peel oil may cause a sun-induced skin rash in people with a sensitivity towards citrus fruits.

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.
Carbomer
Est. %0.3
Function
Origin
CarbomerA synthetic ingredient with the ability to gel water. When used in emulsions, such as lotions and creams, carbomer can also act as an emulsion stabilizer.
Lauryl Acrylate
Est. %0.3
Function
Origin
Lauryl Acrylate
Daucus Carota Sativa (Carrot) Root Extract
Est. %0.3
Function
Origin
Daucus Carota Sativa (Carrot) Root ExtractAn antioxidant extract derived from carrots. It is a rich source of the orange-colored beta-carotene (pro-vitamin A). Carrot root extract is often added to skincare products that are aimed at providing a better suntan.
Taurine
Est. %0.3
Function
Origin
Taurine
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.
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.

Citrine Extract
Est. %0.3
Function
Origin
Citrine Extract
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.
Linalool
Est. %0.3
Function
Origin
LinaloolA fragrant, volatile compound naturally present in many essential oils. It has a pleasant scent and is often used in skincare products as a fragrance. People with sensitive skin should try to avoid it, or at least do a patch test before using it.
Ethyl Ether
Est. %0.3
Function
Origin
Ethyl Ether
Citrus Tangerina (Tangerine) Extract
Est. %0.3
Function
Origin
Citrus Tangerina (Tangerine) Extract
Beta-Carotene (CI 40800)
Est. %0.3
Function
Origin
Beta-Carotene (CI 40800)An orange-red plant pigment with powerful antioxidant activity.
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.

Ascorbic Acid
Est. %0.3
Function
Origin
Ascorbic Acid

Also known as vitamin C, this multi-benefit ingredient has proven anti-wrinkle, antioxidant, and anti-pigmentation efficacy. It degrades easily when exposed to air and light, so it requires proper packaging to maintain its stability.

Citrus Limon (Lemon) Peel Extract
Est. %0.3
Function
Origin
Citrus Limon (Lemon) Peel Extract

Derived from lemon peels, this fresh and citrusy extract contains mostly fragrant limonene, but also antioxidant flavonoids and organic acids.