The serum Mela B3 La Roche-Posay serum is perfectly suited to the problem of brown spots, whether due to sun exposure, age or acne marks (post-inflammatory hyperpigmentation). It is effective even on persistent spots, as well as in cases of uneven skin tone. The role of this serum La Roche-Posay is to reduce the appearance of pigmentation spots. It visibly refines, evens and clarifies skin texture. Developed through 18 years of research, Melasyl is the anti-spot serum's flagship active ingredient Mela B3 It reduces pigmentation spots, even the most stubborn, with long-term results. It is combined with 10% niacinamide, an anti-inflammatory, anti-spot, regenerating and antioxidant ingredient. The Mela B3 serum formula also contains LHA (lipo-hydroxy acid) and retinyl palmitate, which gently exfoliate the skin and boost cell renewal. Finally, thermal spring water from La Roche-Posay This anti-brown spot serum has a light, gel-like texture that is rapidly absorbed. Tested on all skin tones, it preserves a natural complexion. After 2 months' use, brown spots are visibly reduced, giving a brighter, more even complexion.