Recent ProfessorsNot yet assignedRecent SemestersNo scheduled sections on recordClass SizeNot publishedCredits8PrerequisiteCOS 141 , or COS 141A and COS 141B . Transfers ToNot transferableDescriptionA continuation of the science, theory, professional haircoloring techniques, and procedures following COS 141 . Lectures, demonstrations, and practical experience in the following areas: advanced hair coloring procedures, advanced lightening procedures, specialized color application, and corrective haircolor.