TransfermaticCOS at Butte College

    COS 21 - Chemical Hair Services Practicum

    Recent Professors
    Kim L. Kirkwood, Daniel S. Burke, Felicia A. Flores, Marcu C. Wade, Victoria L. Griffin
    Recent Semesters
    Spring 2026
    Class Size
    25 students
    Credits
    4
    Prerequisite
    Prerequisite: COS 20 (or concurrent enrollment)
    Spring 2026 Sections
    View Spring 2026 sections of COS 21
    Transfers To
    CSU
    Description
    In this course students will develop and demonstrate understanding and practice of the basics of chemistry, chemical texture services, and the fundamentals of haircoloring. Students will work towards California State Board of Barbering and Cosmetology minimum practical operations in the subjects learned. This course is an integral class in the Barbering and Cosmetology program sequences.
    Usually Held
    Fri 8:00am–10:50am, Mon Tue Wed Thu 8:00am–10:50am, Mon 4:15pm–7:05pm, Tue Wed Thu Fri 4:15pm–7:05pm