Side-by-side comparison

La Roche-Posay Mela B3 Dark Spot Serum vs The Ordinary Pycnogenol 5%

Both serums contain Glycerin, but only La Roche-Posay Mela B3 Dark Spot Serum adds a targeted active: Niacinamide and Melasyl. That's the main thing to weigh.

1Shared hero active
La Roche-Posay
SerumPremiumMorning or evening
Dark SpotsPost-Acne MarksDullness

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.

The Ordinary
SerumMid-rangeMorning or evening
Photoaging PreventionDullnessRedness

A 5% pine-bark antioxidant (pycnogenol) serum in a lightweight base, for environmental defence. A niche but potent antioxidant; pleasant layered under SPF in the morning, with a faint natural tint to the formula.

The verdict

Which should you choose?

La Roche-Posay Mela B3 Dark Spot Serum goes further with Niacinamide and Melasyl, which The Ordinary Pycnogenol 5% doesn't have. If you only need Glycerin, The Ordinary Pycnogenol 5% covers it; if you want Niacinamide and Melasyl as well, choose La Roche-Posay Mela B3 Dark Spot Serum. La Roche-Posay Mela B3 Dark Spot Serum is the better fit for dark spots and post-acne marks; The Ordinary Pycnogenol 5% for preventing sun damage and redness. On price, The Ordinary Pycnogenol 5% is the less expensive option (Mid-range versus Premium).

The overlap

What they share

This hero active appears in both formulas:

Glycerin
The formulation

Ingredient stacks, side by side

La Roche-Posay Mela B3 Dark Spot Serum — top of the list

  • Aqua~50–80%
  • Glycerin~5–25%
  • Niacinamide~3–10%
  • Melasyl~2–6%
  • Dimethicone~1.5–4%

The Ordinary Pycnogenol 5% — top of the list

  • Caprylic/Capric…~30–70%
  • Aqua~5–25%
  • Glycerin~3–10%
  • Pinus Pinaster …~2–6%
  • Propanediol~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

La Roche-Posay Mela B3 Dark Spot SerumThe Ordinary Pycnogenol 5%
CategorySerumSerum
Price tierPremiumMid-range
Best forDark Spots, Post-Acne Marks, DullnessPhotoaging Prevention, Dullness, Redness
Usage notesMorning or eveningMorning or evening
Shared hero activesGlycerin
Questions

Common questions

Is the La Roche-Posay Mela B3 Dark Spot Serum or The Ordinary Pycnogenol 5% better?
It depends on whether you want Niacinamide and Melasyl. La Roche-Posay Mela B3 Dark Spot Serum has them; The Ordinary Pycnogenol 5% doesn't. Otherwise both rely on Glycerin.
What's the difference between the La Roche-Posay Mela B3 Dark Spot Serum and The Ordinary Pycnogenol 5%?
La Roche-Posay Mela B3 Dark Spot Serum's hero actives are Niacinamide, Melasyl and Glycerin. The Ordinary Pycnogenol 5%'s are Pycnogenol and Glycerin. They also sit in different price tiers (Premium versus Mid-range).
Are the La Roche-Posay Mela B3 Dark Spot Serum and The Ordinary Pycnogenol 5% dupes for each other?
Only partly. They share Glycerin, but La Roche-Posay Mela B3 Dark Spot Serum's Niacinamide and Melasyl have no counterpart in The Ordinary Pycnogenol 5%.
Can I use the La Roche-Posay Mela B3 Dark Spot Serum and The Ordinary Pycnogenol 5% together?
Usually, yes. Apply the thinner texture first, then the thicker one, and patch-test when introducing anything new.
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