This unit describes the performance outcomes, skills and knowledge required to consult with clients, analyse hair characteristics and condition and to complete chemical treatments to reduce curl or wave in the hair. Treatments can be for untreated naturally curly or wavy hair or for chemically treated hair.

Unit details

Study level:
Vocational and further education (TAFE)
Unit code:


Assessment tasks will be designed to reinforce and extend knowledge and skill competence within set and controlled parameters in accordance with each unit's learning outcomes and performance criteria requirements, including the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines. Students will be expected to demonstrate the following required skills: - consult with at least four (4) clients, each with different hair straightening needs, and cumulatively complete these treatments which consistently achieve the planned degree of hair straightening or relaxation and without hair breakage: chemical treatments on untreated natural curly or wavy hair; chemical treatments on chemically treated hair; chemical treatments on strong or resistant natural curls; - for each client, complete a pre-treatment hair analysis covering the following characteristics to recommend appropriate chemical straightening treatments: hair and scalp condition; hair texture; hair density; hair porosity; degree of curl or wave; length of hair; effects on hair of previous chemical services, and; - record the following details of the chemical straightening service in the history for each client serviced: pre-service hair analysis; contraindications; desired degree of relaxation; products, strengths and processing times used; straightening methods used; degree of relaxation achieved; recommended home care products.Students will also be expected to demonstrate the following knowledge: - key characteristics and interrelationships of the elements and principles of hair design and use in achieving hair straightening and relaxation effects; - hair biology, at an elementary level of understanding; - physical effects of chemical products and treatments on the skin; - main structure, functions and role of the skin and glands; - basic concepts of cosmetic chemistry, as they apply to effective and safe use of chemical straightening products; - at an elementary level of understanding, the chemical and physical effects on hair structure and bonds, texture and curl or wave of: protein fillers; chemical straightening and relaxing products; post-process conditioners; neutralisers; application of heat; - key factors that influence degree of relaxation achieved; - contraindications to using chemical hair straightening products; - organisation's chemical hair straightening products range; - basic aspects of local government, state or territory health regulations applicable to providing chemical hair reformation services, and; - industry practices and organisational procedures.

Where to next?

As part of a course

This unit is studied as part of the following courses. Refer to the course page for information on how to apply for the course.

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