On previously over lightened hair, which would be the correct peroxide strength to darken the hair colour?

• 3%

• 6%

• 9%

• 12%

You must monitor the colour correction process to avoid damage and the removal of too many?

• Colour pigments from the cortex

• Hydrogen bonds from the cortex

• Cystine chains from the medulla

• Salt and pepper chains from the cuiticle

If your colour result is too warm you can correct by adding

• red tones

• yellow tones

• green tones

• white tones

what is the code name for hydrogen peroxide?

• H20

• 02

• H202

• c02

Artificial colour can be removed by using?

• A lighter permanent shade

• a colour reducer to reverse the chemical reaction

• Applying H202 which will return the shade back to its natural base

• using a neutralizer to fix the bonds

when hair is lightened, which are the first pigments to be removed?

• orange and blue

• yellow and red

• grey and white

• black and brown

you may need to do this if the client is very dark and you think the target shade may not be reached?

• pre-soften

• pre-pig

• pre-plug

• pre-lighten

the ICC will identify depth and tone worldwide what is the ICC?

• inspiring colour card

• I can colour

• International colour chart

• International colour code

you may need to pre-soften hair prior to the service because it

• can be resistant to coloring services

• can contain metallic salts

• requires the depth and tone restoring

• requires the PH restoring

over processing the hair can be because of

• incorrect selection of H20 strength

• Incorrect selection of H202 strength

• not emulsifying the H202

• the presence of metallic salts