Assessor Resource

SIHHHSC301A
Apply the principles of hairdressing science

Assessment tool

Version 1.0
Issue Date: March 2024


This unit applies to hairdressers in salon environments, who exercise judgement in planning and selecting appropriate products, services, equipment and techniques.

A person undertaking this role applies discretion and judgement and accepts responsibility for outcomes of own work.

This unit describes the performance outcomes, skills and knowledge required to apply the principles of hairdressing science.

Hairdressers demonstrate an understanding of skin and hair biology and cosmetic chemistry as they apply to the performance of hairdressing services.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Nil


Employability Skills

This unit contains employability skills.




Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

knowledge of the main ingredients in common hairdressing products and their physical and chemical effects on hair

applying safe work practices and the safe use of products and equipment (including the use of preventative measures)

knowledge and consistent application of the principles of skin and hair science as they apply to hairdressing services, including:

main functions and roles of the skin

structural and cellular features of hair and hair follicles

process of hair growth and the hair growth cycle

characteristics of normal and damaged hair

contraindications to particular services.

Context of and specific resources for assessment

Assessment must ensure access to:

a salon or a simulated salon environment that includes a range of work situations such as client interruptions and involvement in other related activities normally expected in the salon

a fully equipped salon which includes as a minimum:

a fully functional client reception area with:

telephone

client booking system

retail products range

a basin services area

equipment and work stations suitable for services including:

client consultation

hair and scalp treatments

haircutting

hair design

hair colouring

hair lightening

reformation

a supply of clean towels

a supply of clean client gowns or wraps

hairdressing products and equipment

a range of clients for different services

relevant documentation, such as:

product information and safety data sheets

salon procedures.

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate for this unit:

observation of the learner:

performing consultation, and hair and scalp analysis

safely performing a variety of treatment processes with minimum negative impact on hair and skin.

written or verbal questions appropriate to the language and literacy level of the learner to test knowledge which may include:

structural and cellular features of the hair and hair follicles

hair growth cycle

hair colour

effects of chemical curling, volumising and straightening products on the structure of the hair

relationship between the pre-existing condition of the hair and scalp and the contraindication of some services

review of portfolios of evidence and third-party reports of on-the-job performance.

Guidance information for assessment

A unit of competency describes an individual skill but people rarely perform one skill at a time. Many skills are combined on a day-to-day basis in the workplace as part of work processes. This does not mean that each skill described by a unit of competency is pre-requisite to another— they are related skills.

Holistic assessment with other units relevant to the industry sector, salon and job role is recommended for example:

SIHHOHS201A Apply salon safety procedures

SIHHHSC302A Identify and treat hair and scalp conditions


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

communication skills to respond to questions and provide information, advice and reassurance to clients on hairdressing services

technical skills to:

analyse client hair characteristics

select products and services that will minimise hair damage

protect client and operator skin

literacy skills to interpret:

relevant information on skin and hair biology

product information and safety data sheets

Required knowledge

relevant health and hygiene regulations

skin penetration legislation and regulations

relevant occupational health and safety legislation and regulations

principles of hairdressing science as they relate to hairdressing treatments

salon procedures related to the performance of hairdressing services

skin biology in relation to scalp treatments and procedures

hair biology in relation to common hairdressing treatments

the salon product range.

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

The main structure, functions and role of the skin may include:

structure and function of the glands of the skin

relevant skin surface anatomy

major epidermal appendages and dermal structures

major cells of the epidermis

role of vascular, connective and nervous tissue in the dermis.

The structure and function of the glands of the skin may include:

structure, function, distribution and development of skin glands

production, composition and functions of sebum

production, composition and functions of eccrine and apocrine sweat fluids.

Physical effects of scalp treatments may include:

conditioning

removal of excess skin cells

removal of excess sebum.

The main functions and role of hair may include:

thermo-regulation

protecting the scalp from physical damage

controlling micro-organisms on the skin.

The glands and muscles associated with the hair and hair follicles may include:

structural and cellular features of a hair follicle

sebaceous glands

arrector pili muscle.

The structural and cellular features of hair and hair follicles may include:

hair shaft

layers of the hair

hair root and follicle.

The process of hair growth and the hair growth cycle may include:

hair growth cycle:

anagen (growth phase)

catagen (transitional phase)

telogen (resting phase)

influences on hair growth rate.

The characteristics of normal and damaged hair may include:

hair type including, coarse, medium and fine

texture

porosity.

Hair colour and chemical reformation may include:

main factors contributing to hair colour

origin, structure and location of melanin.

Physical effects of hairdressing services may include:

effects on hair structure

effects on hair texture

degree of curl or wave in hair

hair colour.

Concepts of cosmetic chemistry may include:

bonds

molecules

chemical compounds

chemical change

neutralisation and buffering

organic chemistry

chemical reactions

acids and bases and their effect on skin and hair

pH.

Relevant legislation may include:

federal, state and local health and hygiene

occupational health and safety.

Workplace policies and procedures may include:

client comfort and safety

operator safety

health and hygiene.

Range of hairdressing products may include:

colouring products

lightening products

chemical reformation products

chemical relaxation products

temporary setting aids

topical products including sprays and waxes

trichological treatments.

Contraindications may include:

allergic reactions

hair porosity.

Potential environmental damage may include:

ultraviolet (sun) light

excessive use of overheated thermal equipment.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Identify and apply knowledge of the main structure, functions and role of the skin to the provision of hairdressing services. 
Apply knowledge of the structure andfunction of the glands of the skin to the provision of hairdressing services. 
Identify the physical effects of scalp treatments on the skin and relate to the performance of hairdressing treatments. 
Identify the main functions and role of hair to provide hairdressing services. 
Identify the glands and muscles associated with the hair and hair follicles. 
Recognise the structural and cellular features of hair and hair follicles. 
Apply knowledge of the process of hair growth and the hair growth cycle to the provision of hairdressing services. 
Recognise the characteristics of normal and damaged hair. 
Identify factors affecting hair colour and chemical reformation and apply this knowledge in designing and performing treatments. 
Recognise the physical effects of hairdressing services. 
Identify relevant concepts of cosmetic chemistry and relate to the safe performance of hairdressing services. 
Assess the actions of the range of chemicals used in hairdressing treatments and relate to the selection and performance of hairdressing services. 
Base assessment of suitability of the hair for chemical services on analysis of the effect of previous chemical services or environmental factors on the condition of the hair. 
Assess the formulation of a range of hairdressing products in relation to the product purpose and action on the hair. 
Identify contraindications where they relate to client health and safety, hair condition and potential service outcomes. 
Select appropriate product based on hair and scalp analysis and desired action on hair. 
Apply knowledge of the physical and chemical actions of a range of hairdressing products during services, to maximise the promotion of hair and scalp care, and client and operator safety. 
Apply knowledge of potential environmental damage to hair, when providing after-care service and advice. 

Forms

Assessment Cover Sheet

SIHHHSC301A - Apply the principles of hairdressing science
Assessment task 1: [title]

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I declare that the assessment tasks submitted for this unit are my own work.

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Assessment Record Sheet

SIHHHSC301A - Apply the principles of hairdressing science

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

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Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

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