Understanding Hair Colouring Techniques

What is a contra-indication in the context of men's colouring and lightening services?

• A recommended product for hair treatment

• A condition that may prevent or alter the service

• A type of hair dye

• A specific hair styling technique

Why is it important to test hair and scalp prior to and during colouring and lightening?

• To ensure the hair is clean

• To check for adverse reactions and ensure desired results

• To measure hair length

• To determine the natural hair colour

When should colouring and lightening tests be carried out?

• Only after the colouring process

• Before and during the colouring process

• Only during the lightening process

• After the hair has been washed

How do test results influence colouring and lightening services?

• They determine the price of the service

• They help in selecting the appropriate products and techniques

• They are used to schedule the next appointment

• They indicate the need for a haircut

What effect does colouring have on the hair structure?

• It strengthens the hair

• It can alter the hair's porosity and elasticity

• It makes the hair grow faster

• It has no effect on the hair structure

How does natural light affect hair colour?

• It makes hair appear darker

• It has no effect on hair colour

• It can make hair appear lighter and more vibrant

• It causes hair to fall out

What is the principle of colour selection in hair colouring?

• Choosing colours that are the cheapest

• Selecting colours that complement the client's skin tone and natural hair colour

• Picking colours that are trending on social media

• Using only primary colours

How does temperature affect the colouring and lightening process?

• Higher temperatures can speed up the process

• Temperature has no effect on the process

• Lower temperatures make the process faster

• It only affects the drying time

What is the purpose of a patch test before colouring?

• To check the hair's length

• To ensure the client likes the colour

• To test for allergic reactions

• To measure hair thickness

Which of the following is a sign of a contra-indication?

• Healthy scalp

• Scalp irritation or infection

• Shiny hair

• Thick hair