SkinCeuticals Discoloration Defense Serum Skymedic Nutrocosmetics It works as an antibacterial Waardes:€100 It works as an antibacterial cleansing shampoo that purifies the scalp and helps eliminate unpleasant odors caused by microbial growth and sensitivity consult a physician for personalized advice Discoloration Defense Serum is a corrective serum for daily use that can be used in conjunction with other serums