Side-by-side comparison

Haruharu Wonder Black Rice Hyaluronic Serum vs La Roche-Posay Hyalu B5 Hyaluronic Acid Serum

Both serums contain Hyaluronic Acid, but only Haruharu Wonder Black Rice Hyaluronic Serum adds a targeted active: Niacinamide. That's the main thing to weigh.

1Shared hero active
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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La Roche-Posay
Hyalu B5 Hyaluronic Acid Serum
SerumMid-rangeMorning or evening
DrynessDamaged Barrier

Two molecular weights of hyaluronic acid with panthenol and madecassoside. Designed for visible fine-line plumping on dehydrated skin — works best on damp skin sealed with moisturiser. Fragrance-free.

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The verdict

Which should you choose?

Haruharu Wonder Black Rice Hyaluronic Serum goes further with Niacinamide, which La Roche-Posay Hyalu B5 Hyaluronic Acid Serum doesn't have. If you only need Hyaluronic Acid, La Roche-Posay Hyalu B5 Hyaluronic Acid Serum covers it; if you want Niacinamide as well, choose Haruharu Wonder Black Rice Hyaluronic Serum. Haruharu Wonder Black Rice Hyaluronic Serum is the better fit for dullness. On price, Haruharu Wonder Black Rice Hyaluronic Serum is the less expensive option (Budget versus Mid-range).

The overlap

What they share

This hero active appears in both formulas:

Hyaluronic Acid
The formulation

Ingredient stacks, side by side

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%

La Roche-Posay Hyalu B5 Hyaluronic Acid Serum — top of the list

  • Aqua / Water~50–80%
  • Glycerin~5–25%
  • Propanediol~3–10%
  • Sodium Hyaluro…~2–6%
  • Hyaluronic Acid~1.5–4%
  • Panthenol~1–2%
  • Madecassoside~1–2%
  • Tromethamine~1–2%
  • Propylene Glycol~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

Haruharu Wonder Black Rice Hyaluronic SerumLa Roche-Posay Hyalu B5 Hyaluronic Acid Serum
CategorySerumSerum
Price tierBudgetMid-range
Best forDullness, Dryness, Damaged BarrierDryness, Damaged Barrier
Usage notesMorning or eveningMorning or evening
Shared hero activesHyaluronic Acid
Questions

Common questions

Is the Haruharu Wonder Black Rice Hyaluronic Serum or the La Roche-Posay Hyalu B5 Hyaluronic Acid Serum better?
It depends on whether you want Niacinamide. Haruharu Wonder Black Rice Hyaluronic Serum has it; La Roche-Posay Hyalu B5 Hyaluronic Acid Serum doesn't. Otherwise both rely on Hyaluronic Acid.
What's the difference between the Haruharu Wonder Black Rice Hyaluronic Serum and the La Roche-Posay Hyalu B5 Hyaluronic Acid Serum?
Haruharu Wonder Black Rice Hyaluronic Serum's hero actives are Niacinamide and Hyaluronic Acid. La Roche-Posay Hyalu B5 Hyaluronic Acid Serum's are Hyaluronic Acid, Panthenol and Centella Asiatica. They also sit in different price tiers (Budget versus Mid-range).
Are the Haruharu Wonder Black Rice Hyaluronic Serum and La Roche-Posay Hyalu B5 Hyaluronic Acid Serum dupes for each other?
Only partly. They share Hyaluronic Acid, but Haruharu Wonder Black Rice Hyaluronic Serum's Niacinamide has no counterpart in La Roche-Posay Hyalu B5 Hyaluronic Acid Serum.
Can I use the Haruharu Wonder Black Rice Hyaluronic Serum and La Roche-Posay Hyalu B5 Hyaluronic Acid Serum together?
Usually, yes. Apply the thinner texture first, then the thicker one, and patch-test when introducing anything new.
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2 shared hero actives

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