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May 04, 2024
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COS 113 - Theory of Chemical Services3 Hrs. Prerequisite: COS 111 , COS 112 , COS 125 , and COS 143 Corequisite: COS 114 , COS 115 , and COS 116 During this course students learn concepts of theory of chemical services related to chemical hair texturing. Specific topics include basics of chemistry and electricity, properties of the hair and scalp, and chemical texture services. Safety considerations are emphasized throughout this course. This course is foundational for other courses providing more detailed instruction on these topics.
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