Carotone Black Spot Corrector (B.S.C) Serum Maxi Effect concentrated formula 30ml with sun protection Collagen Formula A must-have, provides fast results on parts of the skin where spots and marks resist. Carotone Black Spot Corrector (B.S.C) Serum Maxi Effect concentrated formula 30ml with sun protection Collagen Formula A must-have, provides fast results on parts of the skin where spots and marks resist. Carotone Black Spot Corrector (B.S.C) Serum Maxi Effect concentrated formula 30ml with sun protection Collagen Formula A must-have, provides fast results on parts of the skin where spots and marks resist.