Hair Colouring and Lightening Quiz

Why is it important to use personal protective equipment (PPE) when colouring and lightening hair?

What are contra-indications, and how can they affect colouring and lightening services?

What are the types and purposes of tests used in colouring and lightening services?

How can the results of lightening tests influence the service?

What are the principles of colour selection, including the International Colour Chart (ICC)?

How does natural pigment in hair affect the choice of colouring products?

What is the effect of colouring and lightening products on hair structure?

When should toners be used in lightening services?

How does hair porosity affect the choice and application of colouring products?

Why is it important to restore the hair’s pH balance after colouring and lightening?