La Roche-Posay Mela B3 Dark Spot Correcting Serum — 10% Niacinamide, Melasyl™ for Sun & Age Spots

La Roche-Posay Mela B3 Serum is a clinical-grade facial serum formulated with Melasyl™ and 10% niacinamide to visibly reduce persistent dark spots and improve overall radiance.

This lightweight correcting serum blends a multi-patented Melasyl ingredient with high‑concentration niacinamide (vitamin B3) to target discoloration from sunspots, age spots and post-acne marks while keeping skin calm and balanced. Designed for daily use, the formula is allergy tested, non-comedogenic and free of parabens, making it suitable for a wide range of skin types looking to even tone and boost luminosity without aggressive irritation.

How quickly will I see results on dark spots?

Users often notice visible improvements in stubborn discoloration within several weeks, with more pronounced changes after consistent twice-daily use for two months. Longevity of results depends on adherence and sun protection.

• Apply morning and evening for best effect.
• Expect gradual lightening over 6–8 weeks for many users.
• Combine with SPF in daytime to prevent re-darkening.

How should I add this serum to my skincare routine?

Use 3–4 drops on clean face and neck, avoiding the eye area. Layer it after cleansing and before moisturizer; in the morning follow with a broad-spectrum sunscreen to protect treatment gains.

• Cleanse and pat skin dry before applying serum.
• Dispense 3–4 drops, smooth evenly over face and neck.
• Finish with La Roche-Posay Mela B3 UV Daily Moisturizer SPF 30 in the AM.

Is this serum suitable for sensitive or acne-prone skin?

The formula is developed to be gentle while effective: it’s allergy tested, non-comedogenic and contains La Roche-Posay prebiotic thermal water to help soothe. Niacinamide is well tolerated by many with sensitive or oily skin, but patch testing is advised for very reactive skin.

• Non-comedogenic — won’t clog pores.
• Prebiotic thermal water helps maintain skin comfort.
• Patch test if your skin reacts to active ingredients.

What types of discoloration does it target?

Mela B3 targets a broad spectrum of pigment concerns, from sun-induced spots and age-related discoloration to marks left behind by acne. The combination of Melasyl™ and 10% niacinamide helps reduce visible contrast and enhances overall clarity.

• Sunspots and photodamage.
• Age spots and uneven tone.
• Post-acne hyperpigmentation and residual marks.

Who is this for: La Roche-Posay Mela B3 Serum is intended for anyone seeking a targeted, daily treatment to even out skin tone and diminish persistent dark spots without harsh exfoliation. It suits adults with sunspots, age-related discoloration or post-inflammatory marks who want a clinically minded formula that can be layered into a standard AM/PM routine. Those with very sensitive or reactive skin should introduce the serum gradually and consult a dermatologist if uncertain.

Ingredients

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).