La Roche-Posay Mela B3 Siero 30ml + SPF 30 Brillante Macchie Scure, 40ml [Stock USA]

✅️ Niacinamide 10% (Serum) – smooths & strengthens barrier. ✅️ Apply serum to clean skin AM & PM. ✅️ Niacinamide 5% (SPF) – brightens while protecting. ✅️ Use SPF 30 every morning as final step.

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