Mela B3 Dark Spot Serum With Melasyl™ + Niacinamide — Reddit Reviews
Updated August 22, 2026
Niacinamide and Melasyl serum targets hyperpigmentation; expensive with mixed results.
What the community says
This serum combines 10% niacinamide with Melasyl to tackle dark spots and pigmentation. Some users see visible fading with consistent use and sunscreen, but many report no improvement or irritation. It’s pricey and can cause burning for sensitive skin types.
What this means for you
Backed by 19 threads from r/SkincareAddiction, r/30PlusSkinCare and 2 more.
Read the threads ↓What people love
- 10% niacinamide concentration for brightening
- Includes Melasyl for pigmentation reduction
- Works well layered on slightly damp skin
Watch out for
- Mixed results; many see no improvement
- Can cause burning or irritation on sensitive skin
- Expensive compared to similar serums
Product details
Where to buy
Real Reddit threads — 27 mentions across 19 threads
La Roche-Posay Mela B3 Dark Spot Serum With Melasyl™ + Niacinamide on Reddit, in one place — 19 threads from r/SkincareAddiction, r/30PlusSkinCare and 2 more, summarized.
“and la roche posay mela b3 every morning”
Positive
“My skincare routine is basically cleaning my face with micelar water, effaclar by la roche posay and biretix every other day at night, and la roche posay mela b3 every morning.”
Positive
“I wear sunscreen every day.”
Positive
“La Roche posay mela B3 serum works wonders for dark spots ..... Good luck babe!”
Positive
“Does anyone know what these brown marks are under my eyes and how I can get rid of them?”
Positive
“Hi! Does anyone know what these brown marks are under my eyes and how I can get rid of them?”
Positive
“[La Roche Posay Mela B3 serum ]”
Mentioned
“Evening:”
Mentioned
“Some examples of products that may help:”
Mentioned
“with mela B3 serum .”
Cautionary
“It was prescribed by dermatologist for melasma . I’m using it for past two months religiously with no results.”
Cautionary
“Hey, same. I feel a burning sensation after applying the serum.”
Cautionary
“Using LRP mela B3 SPF for the day.”
Positive
“Currently using CeraVe cleanser, nuxe micellar water, LRP cicaplast B5 spray, Caudalie vinoperfect dark spot serum, Caudalie reservatrol-lift, and CeraVe moisturizer. Using LRP mela B3 SPF for the day.”
Positive
“for the day”
Positive
“- la rosche posay mela b3 serum”
Cautionary
“Tried with no results”
Cautionary
“extremely stubborn sun spots”
Cautionary
Dupes & Alternatives
Anua
Azelaic Acid Hyaluron Redness Soothing Serum
Better for Hyperpigmentation
3 shared traits
559 mentions
