Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum Review

Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
9.1Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Review

Does Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum has to offer:
 
  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.
  • Potent anti-wrinkle effect. With an anti-wrinkle rating of 9.1 out of 10, Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum is highly potent in reducing wrinkles.
  • Antioxidant protection.

Key Benefits of Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum

 
These are the key benefits you can expect from using Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum:
 

Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum is quite moisturizing, with a moisturizing rating of 5.0 out of 10.

Is it more humectant or occlusive? It is purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a maximum humectancy of 10 out of 10, primarily due to the high content of Propanediol (est. ≈6.0%), Niacinamide (est. ≈4.0%) and Butylene Glycol (est. ≈2.0%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, providing significant hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.

Tip: Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

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.

Potent Anti-Wrinkle Efficacy

According to CreamScan analysis, Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum has a very high anti-wrinkle rating of 9.1 out of 10.

It contains 3 active ingredients with proven anti-wrinkle efficacy:

  • Niacinamide (est. ≈4.0%),
     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).
  • Asiaticoside (est. ≈0.3%),
     derived from the plant Centella asiatica, an ingredient with moderate anti-wrinkle efficacy, as confirmed by a single clinical study involving 27 participants (Lee et al.). This study demonstrated that a cream containing 0.1% asiaticoside reduced the average wrinkle depth by 8% after 12 weeks of use, compared to a vehicle (the same formulation without asiaticoside).
  • 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, Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum also contains some ingredients often marketed as effective in reducing wrinkles, specifically Centella Asiatica Extract, Asiatic Acid, Madecassic Acid, and Sodium Ascorbyl Phosphate. 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.

Rich in Skin-Protecting Antioxidants

We estimate that Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum is rich (> 3%) in antioxidants, specifically Niacinamide (est. ≈4.0%).

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.

Things to Be Aware Of: Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum

 
CreamScan AI identified a few things to consider before adding Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum to your skincare routine:
 

If It’s Your Only Moisturizer, It Needs to Be Paired with Some Occlusives

While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.

One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.

If you’re using Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.

If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.

Pros & Cons of Haruharu Wonder Centella 4% TXA Dark Spot Go Away Serum

 
Here’s an overview of the pros and cons of Haruharu Wonder Centella 4% TXA Dark Spot Go Away 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
  • Delivers potent anti-wrinkle efficacy thanks to ingredients like Niacinamide and Asiaticoside, among others
  • Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage such as UV radiation and pollution

Cons: 

  • Needs to be paired with occlusives to seal in humectants if used as a standalone moisturizer

Ingredients

Est. % Ingredient Origin Functions
80
6
4
4
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Propanediol
Function:
Origin:
Niacinamide
Function:
Origin:
Tranexamic Acid
Function:
Origin:
Butylene Glycol
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Pyrus Communis (Pear) Fruit Extract
Function:
Origin:
Sodium Polyacryloyldimethyl Taurate
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Polyglyceryl-10 Laurate
Function:
Origin:
Madecassoside
Function:
Origin:
Centella Asiatica Extract
Function:
Origin:
Asiaticoside
Function:
Origin:
Ascorbic Acid
Function:
Origin:
Asiatic Acid
Function:
Origin:
Madecassic Acid
Function:
Origin:
Sodium Ascorbyl Phosphate
Function:
Origin:

Ratings

All humectants
12.3
6
4
2
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 12.3 10
10.0
6
4
2
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
4
2
0.3
All humectants 12.3 10
10
All humectants
12.3
6
4
2
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
None
All occlusives 0.0 20
0.0
All occlusives
0.0
None
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
6 /10 4 4 6
3 /10 0.1 0.3 3
2.5 /10 5 0.3 0.1
n/a
- 0.3 -
n/a
- 0.3 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
9.1
Niacinamide
6
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
4
Asiaticoside
3
Ingredient anti-wrinkle power
3 /10
when present at, %
0.1
in this formula, est. %
0.3
Ascorbic Acid
0.1
Ingredient anti-wrinkle power
2.5 /10
when present at, %
5
in this formula, est. %
0.3
Centella Asiatica Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Asiatic Acid
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Madecassic Acid
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Sodium Ascorbyl Phosphate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
9.1
Ingredient Est. % Benchmark
Rich in Antioxidants
4
0.3
0.3
0.3
0.3
0.3
All antioxidants 5.5 3 Rich in antioxidants
All antioxidants
5.5
Niacinamide
4
Asiaticoside
0.3
Ascorbic Acid
0.3
Madecassoside
0.3
Centella Asiatica Extract
0.3
Sodium Ascorbyl Phosphate
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
4
0.3
0.3
All soothing 4.6 5 No
All soothing
4.6
4
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %80
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.
Propanediol
Est. %6
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.
Niacinamide
Est. %4
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.

Tranexamic Acid
Est. %4
Function
Origin
Tranexamic AcidA synthetic amino acid that is used as an astringent to stop the bleeding from small cuts. It also has proven anti-pigment and redness-reducing effects.
Butylene Glycol
Est. %2
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.

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.
Pyrus Communis (Pear) Fruit Extract
Est. %1.3
Function
Origin
Pyrus Communis (Pear) Fruit Extract
Sodium Polyacryloyldimethyl Taurate
Est. %1
Function
Origin
Sodium Polyacryloyldimethyl Taurate
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.
Polyglyceryl-10 Laurate
Est. %0.3
Function
Origin
Polyglyceryl-10 LaurateA vegetable glycerin or synthetically produced emulsifier and gentle cleansing agent. It won't leave skin feeling tight or dry when used to cleanse.
Madecassoside
Est. %0.3
Function
Origin
MadecassosideAn isolated Gotu Kola compound. It helps to increase collagen and hyaluronic acid production in the skin and assists in wound healing.
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.
Asiaticoside
Est. %0.3
Function
Origin
Asiaticoside

A Gotu Kola or Centella Asiatica derivative with confirmed anti-wrinkle efficacy.

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.

Asiatic Acid
Est. %0.3
Function
Origin
Asiatic AcidA compound isolated from Gotu Kola, a promising anti-wrinkle medicinal plant from Southeast Asia. It is claimed to increase the production of collagen and help with the wound healing process.
Madecassic Acid
Est. %0.3
Function
Origin
Madecassic AcidAn isolated bioactive compound from Gotu Kola. It increases collagen and hyaluronic acid production in the skin and helps to treat wounds, scars, and burns.
Sodium Ascorbyl Phosphate
Est. %0.3
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.