Side-by-side comparison

Good Molecules Discoloration Correcting 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
Good Molecules
Discoloration Correcting Serum
SerumBudgetMorning or evening
Dark SpotsDullness

A budget tranexamic acid serum with niacinamide — effective on post-inflammatory hyperpigmentation, especially the stubborn kind that vitamin C doesn't touch. Results take 8–12 weeks; patience required.

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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. Good Molecules Discoloration Correcting Serum adds Tranexamic Acid. Pick the one whose extra matches what you're treating. Good Molecules Discoloration Correcting Serum is the better fit for dark spots; 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

Good Molecules Discoloration Correcting Serum — top of the list

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

Good Molecules Discoloration Correcting SerumHaruharu Wonder Black Rice Hyaluronic Serum
CategorySerumSerum
Price tierBudgetBudget
Best forDark Spots, DullnessDullness, Dryness, Damaged Barrier
Usage notesMorning or eveningMorning or evening
Shared hero activesNiacinamide
Questions

Common questions

Is the Good Molecules Discoloration Correcting Serum or the Haruharu Wonder Black Rice Hyaluronic Serum better?
It depends on what you're treating. Both contain Niacinamide; Good Molecules Discoloration Correcting Serum adds Tranexamic Acid.
What's the difference between the Good Molecules Discoloration Correcting Serum and the Haruharu Wonder Black Rice Hyaluronic Serum?
Good Molecules Discoloration Correcting Serum's hero actives are Tranexamic Acid and Niacinamide. Haruharu Wonder Black Rice Hyaluronic Serum's are Niacinamide and Hyaluronic Acid.
Are the Good Molecules Discoloration Correcting Serum and Haruharu Wonder Black Rice Hyaluronic Serum dupes for each other?
Partly. They share Niacinamide, but Good Molecules Discoloration Correcting Serum's Tranexamic Acid isn't in the other, so they aren't full substitutes.
Can I use the Good Molecules Discoloration Correcting 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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