BTEB Beautician Exam study materials
BTEB Beautician Exam study resources

A Client Who Wants a Very Light Lift on Previously Coloured Hair

BTEB Beautician Exam · Put your knowledge to work in context.

All case studies

A Client Who Wants a Very Light Lift on Previously Coloured Hair

A client with shoulder-length hair comes in wanting to go from a level 4 brown (dyed six weeks ago with a permanent colour) to a level 8 blonde in one appointment. She has about 8 cm of natural regrowth at the roots, which she describes as 'dark'. She had a bleach service two years ago that left her ends 'a bit stretchy', and she uses a straightener daily at high heat without protection. She has a wedding in two weeks and a holiday with sun and sea swimming a week after that. She is firm that she does not want a two-step process and does not want to hear about 'damage'.

1. Assess whether a single-session lift to level 8 is realistic, and explain your reasoning to the client in terms she can act on.

Read the worked answer

Assessment: A four-level lift in one session on hair that is already permanently coloured is a high-risk request, and the history makes it riskier.

  • Coloured hair: Permanent colour has already deposited pigment and altered the hair. Lightening it means removing both the natural pigment and the artificial pigment, which is harder on the fibre than lifting virgin hair.
  • Regrowth: The roots are virgin and will lift differently and faster than the coloured lengths. One application across both zones will over-process the roots and under-process the ends. That is a technical reason a single uniform application will not give an even level 8.
  • 'Stretchy' ends: That is a description of compromised elasticity - the hair is already weakened. Lifting four levels on top of that risks breakage, and the ends may not survive to the wedding.
  • Heat and no protection: Daily high-heat straightening without a protectant adds cumulative damage. It is a factor in how much the hair can take, and it is a factor she controls.
  • Timeline: A wedding in two weeks and sea swimming a week later are both poor conditions for freshly lightened hair. Sun, salt water, and chlorine on porous, lightened hair increase fading, dryness, and breakage.

Explaining it: Use the stretch test as a demonstration rather than a lecture. Say what you can achieve safely in one session, what it will look like, and what a staged plan would give her. Offer a realistic target - for example, a partial lift with a bond-building treatment and a plan for the wedding - and be clear that 'level 8 in one go' is not something you will promise. If she insists on the full lift, decline and record why.

2. She agrees to a staged approach. Outline the plan, including what you do at the first appointment and what you tell her about the wedding and holiday.

Read the worked answer

First appointment:

  • Strand test first, on both a root section and a mid-length section, to see how each zone responds and how much lift is achievable without compromising the fibre.
  • Treat the zones separately: assess whether the roots need a different formulation or timing from the coloured lengths, and do not apply one mix across both.
  • Lift to a realistic intermediate level rather than pushing to 8, then tone. A controlled partial lift protects the option of a second session.
  • Add a bond-building or strengthening treatment as part of the service, and explain that it supports the hair during lightening; it does not make the hair invincible.
  • Check elasticity again before rinsing and stop if the hair feels compromised.

Home care before the wedding:

  • A protectant before heat styling and a lower heat setting.
  • A conditioning routine suited to lightened hair; wash less often if her scalp tolerates it.
  • No further chemical services before the wedding.

The wedding and holiday:

  • Book the second lightening session after the holiday, not before the wedding, so the hair is settled for the event and not freshly stressed.
  • Warn her that sun, salt water, and chlorine will fade tone and dry the hair. Advise rinsing before and after swimming, a leave-in with UV protection, and a hat where practical.
  • Set expectations that the final level will be reached over sessions, and that the condition of the ends may limit how light you go.

Document: the strand test result, the target level agreed, the staged plan, the home-care advice, and that she was told the timeline. If she later wants to push faster, the record shows what was agreed.