Arcade Deep Repair B5 Hair Care Serum 100 mlArcade Deep Repair B5 Hair Care Serum 100 ml: the serum of the deep repair care series with its content of Biotin (Vitamin H), Keratin, Provitamin B5 and Ceramide act directly on the hair and penetrates deep into the hair strands, delivering the nutrients and vitamins your hair needs directly to your hair strands and repairs your hair intensely.