La Roche-Posay Mela B3 Dark Spot Correcting Serum — 10% Niacinamide, Melasyl™ for Even Tone

La Roche-Posay Mela B3 Serum is a targeted facial serum formulated with Melasyl™ and 10% niacinamide to visibly reduce dark spots, sunspots, age spots and post-acne marks while improving overall radiance.

Designed after extensive research, this discoloration-correcting serum combines a multi-patented active, Melasyl™, with a high concentration of niacinamide (vitamin B3) and soothing La Roche-Posay thermal water. The result is a lightweight, non-comedogenic formula that works daily to help even skin tone and boost brightness without harsh irritation. Clinically evaluated for long-lasting results, the serum is intended for twice-daily use as part of a complete skincare routine.

How quickly will I see a reduction in dark spots?

Individual results vary, but clinical testing shows many users notice visible improvement over several weeks. Consistent use twice daily is recommended for meaningful fading of persistent discoloration.

• Reported improvements often begin within 8 weeks with regular application.
• Apply 3–4 drops to face and neck morning and evening for best results.
• Pair with daily SPF in the morning to protect treated areas from new sun-induced spots.

What active ingredients make this effective without sensitizing skin?

Mela B3 Serum combines Melasyl™, a research-backed ingredient designed to target pigment formation pathways, with 10% niacinamide to reduce visible discoloration while supporting skin barrier function. La Roche-Posay Prebiotic Thermal Water is included to soothe and help maintain healthy skin balance.

• Melasyl™: multi-patented ingredient aimed at reducing spot intensity.
• 10% niacinamide: vitamin B3 that helps fade uneven tone and reinforce barrier.
• Prebiotic Thermal Water: calms skin and supports microbiome balance.

How should I add this serum to my daily skincare routine?

Use the serum after cleansing and toning, both morning and night, applying a few drops across the face and neck while avoiding the eye area. For daytime, follow with a moisturizer that contains SPF 30 or higher to guard against UV-related pigmentation.

• Start with clean, dry skin; warm 3–4 drops between fingertips then press gently onto face.
• Allow the serum to absorb before layering moisturizer and sunscreen in the morning.
• Complement with Mela B3 UV Daily Moisturizer SPF 30 for added protection and hydration.

Is this suitable for my skin type and concerns?

The formula is developed to respect all skin types, including sensitive skin, and is allergy tested and non-comedogenic. It targets multiple forms of discoloration—sunspots, age spots, post-acne marks—without heavy fragrances or parabens.

• Suitable for normal, dry, combination, oily and sensitive skin types.
• Non-comedogenic and paraben-free to minimize pore-clogging and irritation risks.
• Can be used by people focused on discoloration, dullness, or early signs of aging.

Who is this for: La Roche-Posay Mela B3 Serum is intended for anyone seeking a scientifically developed solution to persistent hyperpigmentation and uneven tone who prefers a gentle, daily-use serum. It is well-suited to people who want to combine targeted spot correction with skin-soothing ingredients, those looking to prevent new sun-induced spots by using it alongside daily SPF, and anyone who favors dermatologist-developed formulations that are allergy tested and non-comedogenic.

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).