This course information is obtained from the Columbus
Technical College Catalog (pdf 
).
Please check with the department offering the course for the most
updated information.
COS 109 - Hair Color - Presents the application of temporary, semi-permanent, deposit only, and permanent hair coloring and decolorization products. Topics include basic color concepts, classifications of color, safety precautions, consultation, communication and record and release forms, product knowledge, special problems in hair color and corrective coloring, and special effects. Prerequisites/Corequisites: COS 100, COS 101, COS 103, COS 105, COS 106, COS 108
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This course information is obtained from the Columbus
Technical College Catalog (pdf ).
Please check with the department offering the course for the most
updated information.