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1) If hair has been previously lightened and it is to be corrected by going darker, what peroxide would need to be used?  a) 3% developer in order to achieve the best result while maximising the condition. b) 6% developer in order to achieve even depth and tone. c) 12% developer to prevent creeping oxidation. 2) It is important to monitor development of colour correction closely in order to... a) prevent damage and removal of too many pigments from the cortex.  b) let the colour work properly on the hair c) prevent damage to the salt links. 3) How can dermatitis be prevented during colour correction services? a) Use an antibacterial soap before and after all services. b) Wear gloves and thoroughly rinse and dry hands after wet work. c) Use a pH balanced product on clients at all times 4) How can a warm tone be corrected? a) By adding green tones b) By adding red tones c) By adding yellow tones 5) What are the chemical changes that take place in the cortex during permanent colour?  a) H2O2 (hydrogen peroxide) opens the cuticle to allow the colour to penetrate the cortex. b) H2O (water) opens the cuticle, allowing product penetration. c) CO2 Ccarbon dioxide) being absorbed through the cuticle triggering a reaction. 6) What can the inhalation of powdered bleach cause?  a) dermatitis b) asthma c) impetigo 7) How can artificial colour be removed from the hair? a) A colour reducer will reverse the chemical reaction. b) Apply a lighter permanent colour to hide the shade. c) Use a lightening powder. 8) Which of the following principles should be taken into consideration in order to achieve the target shade? a) Length, growth patterns and the natural fall of the hair b) Face shape, growth patterns and length of hair c) Natural depth and tone, and the percentage of white hair present 9) During the lightening process which pigments are the first to be removed?  a) Black and brown b) Red and yellow c) Orange and blue 10) If the degree of lift required needed more than one application, what would be needed before the colouring process? a) The hair would need to be pre-softened. b) The hair would need ti be pre-lightned. c) Apply a lighter colour first. 11) Why do results of hair tests need to be recorded?  a) To comply with data protection requirements b) To adhere to local by-laws c) To create a record for future reference and legal reasons 12) When using the International Colour Chart (ICC) to select colour, manufacturers will apply... a) the same numbering system, worldwide, to identify depth and tone b) the same numbering system, worldwide, to identify texture and density c) lower numbers to lighter shades, worldwide 13) What is the chemical process that occurs when using a lightening product?  a) H2O will open the cuticle, allowing product penetration. b) Melanin is changed to colourless oxymelanin, c) colourless oxymelanin is changed to melanin. 14) What advice should you give after a colour to help the client maintain their hair condition?  a) Sulphate-free shampooing products should be used when shampooing b) Sulphate products should be used all the times. c) High frequency treatments should be done weekly. 15) Why is important to restore the hair’s pH balance after colour correction? a) To avoid creeping oxidation b) To avoid creeping hydration.  c) To restructure the broken hydrogen links 16) What could be the cause of colour banding in the hair?  a) Overlapping the colour during application. b) Too much colour applied during application. c) Incorrect target shade chosen 17) What could be the cause of over processing?  a) The incorrect selection of H2O2 (hydrogen peroxide) strength. b) The presence of metallic salts. c) An incorrect selection of O2 selectors. 18) When calculating the percentage of hydrogen peroxide you must consider the strength of... a) oxygen given off per 100 ml solution b) oxygen given off per 1000 ml solution c) hydrogen given off per 100 ml solution 19) Why does white hair need to be pre-softened before a colour?  Because it can...  a) have open cuticle scales b) be resistant to colouring services c) require the depth and tone to be restored. 20) What is the process called when depth and tone needs to be restored?  a) Pre-pigment b) Pre-soften c) Pre-lighten

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