The concentrated Bioderma Sébium Sérum facial serum provides comprehensive, targeted care that helps reduce imperfections and signs of acne while also combating the first signs of skin ageing. The complementary action of precisely dosed active ingredients (salicylic acid, acetyl glucosamine, hyaluronic acid) and Fluidactive™ technology works immediately on the signs of adult acne-prone skin. Day after day, pimples and acne marks are visibly reduced, pores are tightened and fine lines are smoothed.