Side-by-side comparison

Haruharu Wonder Black Rice Hyaluronic Serum vs The Inkey List Niacinamide Serum

Both are serums. They share a 99% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

99%Active overlap
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.

Full analysis →Find dupes →
The Inkey List
Niacinamide Serum
SerumBudgetMorning or evening
OilinessCongestionDark Spots

A 10% niacinamide serum with added hyaluronic acid for oil control and blemish support. A clean, affordable single-active option; broadly comparable to other 10% niacinamide serums with a slightly more hydrating base.

Full analysis →Find dupes →
The verdict

Which should you choose?

Both sit in the Budget tier, so cost isn't the deciding factor here — choose on texture, finish and the supporting ingredients. The Haruharu Wonder leans toward Damaged Barrier, Dryness, Dullness. The The Inkey List leans toward Congestion, Dark Spots, Oiliness.

The overlap

What they share

At 99% active overlap, these are the ingredients doing comparable work in both formulas:

Hyaluronic AcidNiacinamide
The formulation

Ingredient stacks, side by side

Haruharu Wonder — 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%

The Inkey List — top of the list

  • Aqua~50–80%
  • Niacinamide~5–25%
  • Glycerin~3–10%
  • Sodium Hyaluron…~2–6%
  • Pentylene Glycol~1.5–4%

● 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

Haruharu WonderThe Inkey List
CategorySerumSerum
Price tierBudgetBudget
Best forDullness, Dryness, Damaged BarrierOiliness, Congestion, Dark Spots
Usage notesMorning or eveningMorning or evening
Active overlap99% — Hyaluronic Acid, Niacinamide
Questions

Common questions

Is the Haruharu Wonder Black Rice Hyaluronic Serum or the The Inkey List Niacinamide Serum better?
Neither is clearly better — they overlap 99% on active ingredients and sit in the same price tier. The difference comes down to texture, finish and the supporting ingredients, so the right choice depends on your skin type and preferences.
What's the difference between the Haruharu Wonder Black Rice Hyaluronic Serum and the The Inkey List Niacinamide Serum?
Both are serums that share Hyaluronic Acid, Niacinamide. Where they differ: the Haruharu Wonder targets Damaged Barrier, Dryness; the The Inkey List targets Congestion, Dark Spots.
Are the Haruharu Wonder Black Rice Hyaluronic Serum and The Inkey List Niacinamide Serum dupes for each other?
They share 99% active-ingredient overlap based on published INCI lists, so one can stand in for the other on the actives that matter — chiefly Hyaluronic Acid, Niacinamide. A dupe matches the hero actives, not the full sensory experience, so expect differences in texture, fragrance and exact concentrations.
Can I use the Haruharu Wonder Black Rice Hyaluronic Serum and The Inkey List Niacinamide Serum together?
They both fill the serum slot in a routine, so you'd normally pick one rather than layer both. If you want to use both, treat one as your daytime option and the other for evening, and patch-test when introducing anything new.
Keep comparing

Related comparisons

Glow Recipe Watermelon Glow Niacinamide Dew Drops vs Haruharu Wonder Black Rice Hyaluronic Serum
99% overlapAnua Niacinamide 10% + TXA 4% Serum vs Haruharu Wonder Black Rice Hyaluronic Serum
85% overlapGlow Recipe Plum Plump Hyaluronic Acid Serum vs Haruharu Wonder Black Rice Hyaluronic Serum
85% overlapHaruharu Wonder Black Rice Hyaluronic Serum vs Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum
85% overlapHaruharu Wonder Black Rice Hyaluronic Serum vs Vichy Mineral 89 Probiotic Fractions Serum
85% overlapBeauty of Joseon Glow Serum : Propolis + Niacinamide vs Haruharu Wonder Black Rice Hyaluronic Serum
77% overlap

Want a deeper, personalised read? Drop both products into the live comparison tool for an ingredient-by-ingredient breakdown tuned to your skin profile.

Compare these yourself →