colouring hair faults and fixing problems.

Before carrying out any colour correction service. The client must have had ?

• shampoo and condition

• strand test

• skin test

• incompatibility test

which of these can cause a bleed in a foil service?

• application

• heat

• mixture

• previous hair colour

insufficient grey hair coverage, when colouring hair can be due to?

• Heat too hot

• the amount of grey present

• not enough base in the target shade

• the amount of resistant curl

Overlapping during the colour service can produce

(a)  

if the hair colour is too light, what could have happened?

• Too high peroxide

• Too low peroxide

• wrong product choice

• left on too long

when fixing a bleed in the hair colour you can?

• re-colour the whole head

• spot colour with natural shade

• spot colour with the bleach

• paint on a red tone

If your hair colour has turned out too dark, why has this happened?

• wrong product/ shade choice

• foils left too long

• too high peroxide

• too much heat

This test is used to check development of colour

• porosity test

• skin test

• incompatibility test

• strand test

Loss of colour pigment can be down to this? P (a)  

If you do not remove the colour correctly and leave in the hair this can cause?

• The hair to fall out

• The colour to change shade

• Creeping oxidation

• oxidising peroxide