What are the safety considerations that must be taken into account when colouring hair? (tick all that apply)

How long does a Quasi-Permant colour last?

What size molecules do semi-permanent products have?

Which colourant has small molecules that penetrate the cortex, swell and become trapped?

Which tests do you do BEFORE a colouring service? (tick all that apply)

To perform an incompatibility test you mix ammonia with hydrogen peroxide. What is the ratio?

Your client wants funky colour highlights all over, which application technique would you use?

Which TWO colourants require an activator/developer? (tick all that apply)

Which colouring product requires you to follow manufactures instructions? (tick all that apply)

During a strand test, what are you looking for?

Why is it important to record all services provided? (tick all that apply)