Side-by-side comparison

Byoma Brightening Serum vs Haruharu Wonder Black Rice Hyaluronic Serum

Both serums contain Niacinamide, but each adds something the other doesn't. Here's where they overlap and where they split.

1Shared hero active
Byoma
Brightening Serum
SerumBudgetMorning or evening
Dark SpotsDullnesssensitive

Tranexamic acid + niacinamide + ceramide serum at an unusually low price point for this combination. Genuinely effective for post-inflammatory pigmentation and melasma-prone skin — and gentler than vitamin C for many people.

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Haruharu Wonder
Black Rice Hyaluronic Serum
SerumBudgetMorning or evening
DullnessDrynessDamaged Barrier

Fermented black rice extract with niacinamide and hyaluronic acid. Antioxidant-leaning hydrator rather than a targeted active — a good 'daily vegetable' layer under stronger serums.

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The verdict

Which should you choose?

Both contain Niacinamide. Byoma Brightening Serum adds Tranexamic Acid. Pick the one whose extra matches what you're treating. Byoma Brightening Serum is the better fit for dark spots and sensitive skin; Haruharu Wonder Black Rice Hyaluronic Serum for dryness and a damaged barrier. Both sit in the Budget price tier.

The overlap

What they share

This hero active appears in both formulas:

Niacinamide
The formulation

Ingredient stacks, side by side

Byoma Brightening Serum — top of the list

  • Water~50–80%
  • Propanediol~5–25%
  • Glycerin~3–10%
  • Niacinamide~2–6%
  • Tranexamic Acid~1.5–4%
  • Pentylene Glycol~1–2%
  • Butylene Glycol~1–2%

Haruharu Wonder Black Rice Hyaluronic Serum — top of the list

  • Oryza Sativa (…~50–80%
  • Water~5–25%
  • Butylene Glycol~3–10%
  • Niacinamide~2–6%
  • Bambusa Vulgar…~1.5–4%
  • Dipropylene Gl…~1–2%
  • Glycerin~1–2%
  • 1,2-Hexanediol~1–2%
  • Sodium Hyaluro…~1–2%
  • Hyaluronic Acid~1–2%

● marks ingredients that appear near the top of both lists. Percentages are positional estimates from INCI order, not disclosed doses.

At a glance

The specs

Byoma Brightening SerumHaruharu Wonder Black Rice Hyaluronic Serum
CategorySerumSerum
Price tierBudgetBudget
Best forDark Spots, Dullness, sensitiveDullness, Dryness, Damaged Barrier
Usage notesMorning or eveningMorning or evening
Shared hero activesNiacinamide
Questions

Common questions

Is the Byoma Brightening Serum or the Haruharu Wonder Black Rice Hyaluronic Serum better?
It depends on what you're treating. Both contain Niacinamide; Byoma Brightening Serum adds Tranexamic Acid.
What's the difference between the Byoma Brightening Serum and the Haruharu Wonder Black Rice Hyaluronic Serum?
Byoma Brightening Serum's hero actives are Tranexamic Acid and Niacinamide. Haruharu Wonder Black Rice Hyaluronic Serum's are Niacinamide and Hyaluronic Acid.
Are the Byoma Brightening Serum and Haruharu Wonder Black Rice Hyaluronic Serum dupes for each other?
Partly. They share Niacinamide, but Byoma Brightening Serum's Tranexamic Acid isn't in the other, so they aren't full substitutes.
Can I use the Byoma Brightening Serum and Haruharu Wonder Black Rice Hyaluronic Serum together?
Usually, yes. Apply the thinner texture first, then the thicker one, and patch-test when introducing anything new.
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1 shared hero active

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