Haruharu Wonder Black Rice Hyaluronic Serum vs La Roche-Posay Mela B3 Dark Spot Serum
Both serums contain Niacinamide, but each adds something the other doesn't. Here's where they overlap and where they split.
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.
A pigment-targeting serum built on Melasyl plus 10% niacinamide for stubborn dark spots and post-acne marks. A clinical-leaning brightening serum; results on melasma and PIH build slowly over weeks with diligent SPF.
Which should you choose?
Both contain Niacinamide. La Roche-Posay Mela B3 Dark Spot Serum adds Melasyl. Pick the one whose extra matches what you're treating. Haruharu Wonder Black Rice Hyaluronic Serum is the better fit for dryness and a damaged barrier; La Roche-Posay Mela B3 Dark Spot Serum for dark spots and post-acne marks. On price, Haruharu Wonder Black Rice Hyaluronic Serum is the less expensive option (Budget versus Premium).
What they share
This hero active appears in both formulas:
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%
- Bambusa Vulgar…~1.5–4%
- Dipropylene Gl…~1–2%
- 1,2-Hexanediol~1–2%
- Sodium Hyaluro…~1–2%
- Hyaluronic Acid~1–2%
La Roche-Posay Mela B3 Dark Spot Serum — top of the list
- Aqua~50–80%
- Melasyl~2–6%
- Dimethicone~1.5–4%
● marks ingredients that appear near the top of both lists. Percentages are positional estimates from INCI order, not disclosed doses.
The specs
| Haruharu Wonder Black Rice Hyaluronic Serum | La Roche-Posay Mela B3 Dark Spot Serum | |
|---|---|---|
| Category | Serum | Serum |
| Price tier | Budget | Premium |
| Best for | Dullness, Dryness, Damaged Barrier | Dark Spots, Post-Acne Marks, Dullness |
| Usage notes | Morning or evening | Morning or evening |
| Shared hero actives | Niacinamide | |
Common questions
Is the Haruharu Wonder Black Rice Hyaluronic Serum or the La Roche-Posay Mela B3 Dark Spot Serum better?
What's the difference between the Haruharu Wonder Black Rice Hyaluronic Serum and the La Roche-Posay Mela B3 Dark Spot Serum?
Are the Haruharu Wonder Black Rice Hyaluronic Serum and La Roche-Posay Mela B3 Dark Spot Serum dupes for each other?
Can I use the Haruharu Wonder Black Rice Hyaluronic Serum and La Roche-Posay Mela B3 Dark Spot Serum together?
Related comparisons
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