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Haruharu Wonder 4% TXA Gel Serum / Unscented

Haruharu Wonder 4% TXA Gel Serum / Unscented

SkincareSerums / Essences

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What the ingredients say

Read from the label order, stated amounts and each ingredient’s clinical evidence

Tranexamic Acid, with clinical evidence for dark spots, is in at the amount studies used (4%).

Niacinamide, with clinical evidence for oiliness, is in at the amount studies used (4%).

  • no fragrance

Best-supported ingredient per concern

  • Dark spotsTranexamic Acidevidence B+4% stated · study amount
  • OilinessNiacinamideevidence B-4% stated · study amount
  • Skin barrierNiacinamideevidence B-4% stated · study amount
  • BlemishesNiacinamideevidence B-4% stated · study amount
  • PoresNiacinamideevidence C4% stated · study amount
  • LinesNiacinamideevidence C4% stated · study amount

Evidence-graded ingredients and how much is in

Tranexamic Acid4% stated · study amount

The label states 4% — the amount studies used (2–5%).

Dark spots B+

When morning and evening · low irritation

Niacinamide4% stated · study amount

The label states 4% — the amount studies used (2–5%).

Dark spots B · Oiliness B- · Skin barrier B- · Blemishes B- · Pores C · Lines C

When morning and evening · low irritation

Madecassoside0.003% stated · below study amount

The label states 0.003% — less than studies used (about 0.1%).

Skin barrier C · Lines D

When morning and evening · low irritation

Asiaticoside0.002% stated · below study amount

The label states 0.002% — less than studies used (about 0.1%).

Skin barrier C

When morning and evening · low irritation

Sodium Ascorbyl Phosphatelikely too little

No amount is stated. Judging by 55 products that state it at this place on the label, the chance it reaches the amount studies used is about 1%.

Blemishes B · Dark spots C

When morning · low irritation

1 more evidence-graded ingredients
Ascorbic Acidbelow study amount

It comes after a preservative the law caps at 7.7%, so it is at most 7.7% — short of what studies used (10–20%).

Dark spots B+ · Lines B · Firmness C

When morning · moderate — start every other day

Amounts on the label

  • Niacinamide4%1% or more
  • Tranexamic Acid4%1% or more
  • Madecassoside0.003%trace (under 0.1%)
  • Centella Asiatica Extract0.0025%trace (under 0.1%)
  • Asiaticoside0.002%trace (under 0.1%)
  • Asiatic Acid0.0002%trace (under 0.1%)
  • Madecassic Acid0.0002%trace (under 0.1%)

Korean law requires a product to state the amount of any ingredient in its name.

How this was read

Labels list ingredients above 1% from most to least, then those at 1% or less in any order. A product filed with Korea's MFDS as functional is read as holding the notified amount of its efficacy ingredient when the label carries only one for that effect, and anything listed before an ingredient of known amount as holding at least that much. Amounts in the product name or official description are used only where the label order allows them. Where no amount is stated, the chance of reaching the study amount comes from other products that state the same ingredient at the same place on their labels. Evidence grades were set by reading each ingredient's studies.

A
several randomised trials or a meta-analysis
B
one or two randomised trials
C
uncontrolled or multi-ingredient studies
D
lab work or a record only

A reading of ingredient evidence and the label, not a guarantee that this product works.

Ingredients

Full ingredient list as published on the official product page, in descending order of content.

All 17 ingredients at a glance

By concern

Colours follow each ingredient’s use (CosIng functions); the bar counts names. Not amounts, not a safety score.

, , 4%, 4%, , , , , Estimated 1% or less from here, , 30ppm, 25ppm, 20ppm, , 2ppm, 2ppm,

Tap a name to see what it does and the evidence

1IngredientsOverseas official store (US) · Observed 2026-09-24
In the same category

Similar ingredient lists

Compares only the front of the ingredient list, leaving out what most products contain, like water and glycerin. It does not mean the products are the same, or feel the same.