2credit hour(s)Corequisite:COS 2505 + COS 2511 + COS 2590 + COS 2692 Presents advanced theory applied to sterilization, sanitation, bacteriology, shampoo. rinses, scalp treatments, chemical rearranging, perms relaxers, hair cutting, hair coloring, bleaching, hairstyling, facials, manicuring and pedicuring, community health issues, salon safety, problem solving and special projects.