La Roche-Posay Mela B3 Dark Spot Serum 10% Niacinamide Melasyl — Lightweight Brightening

La Roche-Posay Mela B3 Serum is a targeted facial serum that visibly reduces dark spots, brightens uneven tone, and supports a more radiant complexion. La Roche-Posay developed Mela B3 as a science-forward solution to stubborn discoloration. Built around the multi-patented Melasyl complex and a high-strength 10% niacinamide (Vitamin B3), this lightweight serum is formulated to fade sunspots, age spots and post-acne marks while remaining non-comedogenic, paraben-free and allergy-tested. Clinical research shows most users notice meaningful improvement in persistent spots after consistent use over eight weeks.

How does Mela B3 help reduce different kinds of dark spots?

The formulation pairs Melasyl — a targeted, patented ingredient blend — with 10% niacinamide to address multiple mechanisms behind hyperpigmentation. Together they help diminish existing discoloration and improve overall skin radiance without altering natural skin tone.

• Works on sunspots, age-related spots and post-inflammatory hyperpigmentation.
• Melasyl targets pigmentation pathways while niacinamide soothes and evens tone.
• Clinically evaluated for visible reduction in stubborn spots with ongoing use.

What is the texture and how should I use this serum in my routine?

Mela B3 has a smooth, lightweight texture that absorbs quickly and leaves no sticky residue, making it easy to layer under moisturizer and sunscreen. Apply a few drops morning and evening to cleansed face and neck, avoiding the eye area; follow with SPF in the morning to protect results.

• Use 3–4 drops on face and neck after cleansing, morning and night.
• Pair with a daily broad-spectrum SPF each morning to prevent new discoloration.
• Non-comedogenic and suitable for layering under other skincare products.

Is Mela B3 suitable for sensitive or all skin tones?

The formula is developed to respect natural skin tone across phototypes and was allergy-tested to increase tolerability. Its paraben-free, dermatologist-backed composition makes it appropriate for many skin types, including those prone to sensitivity, though patch testing is always recommended for very reactive skin.

• Formulated for all skin tones and phototypes without altering natural tone.
• Allergy-tested and paraben-free to reduce irritation risk.
• Non-comedogenic for use on acne-prone skin when used as directed.

What results can I expect and how long before I see them?

Results are gradual; clinical studies showed that a majority of participants saw noticeable reduction in persistent dark spots after eight weeks of consistent use. Continued daily use supports longer-lasting improvement in brightness and spot visibility.

• Visible reduction in many users after approximately eight weeks of consistent application.
• Improved overall luminosity and more even tone with continued use.
• Best maintained when combined with daily sun protection.

Who is this for: Mela B3 is designed for anyone wanting to reduce visible dark spots and achieve a more even, luminous complexion — including people with sun-induced spots, age-related discoloration, or post-acne marks. It is suitable for men and women across skin tones who prefer a dermatologist-developed, lightweight serum that integrates easily into morning and evening skincare routines. If you have very sensitive or reactive skin, consider a patch test or consult a dermatologist before regular use.

Ingredients

AQUA / WATER / EAU • DIMETHICONE • NIACINAMIDE • GLYCERIN • PROPYLENE GLYCOL • POLYSILICONE-11 • SILICA • BIS-PEG/PPG-16/16 PEG/PPG-16/16 DIMETHICONE • CYSTOSEIRA TAMARISCIFOLIA EXTRACT • 2-MERCAPTONICOTINOYL GLYCINE • PEG-20 METHYL GLUCOSE SESQUISTEARATE • SODIUM HYALURONATE • SODIUM HYDROXIDE • SODIUM THIOSULFATE • CARNOSINE • POLOXAMER 338 • AMMONIUM POLYACRYLOYLDIMETHYL TAURATE • DIPOTASSIUM GLYCYRRHIZATE • CAPRYLIC/CAPRIC TRIGLYCERIDE • CAPRYLOYL SALICYLIC ACID • CAPRYLYL GLYCOL • CITRIC ACID • TRISODIUM ETHYLENEDIAMINE DISUCCINATE • XANTHAN GUM • PENTYLENE GLYCOL • OCTYLDODECANOL • RETINYL PALMITATE • TOCOPHEROL • PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE • PHENOXYETHANOL • CI 17200 / RED 33 • PARFUM / FRAGRANCE (F.I.L. N70037312/1)

FAQ

Q: How often should I use La Roche-Posay Mela B3 Serum?

A: Apply 3–4 drops to cleansed face and neck morning and night. Use sunscreen each morning to protect results.

Q: Can I use Mela B3 with other active ingredients like retinol?

A: You can layer it with most actives, but introduce combinations gradually and patch test. Consult your dermatologist for tailored guidance.