California Cosmetology Written ExamEyelash and Eyebrow ServicesHard
A client who currently has a full set of eyelash extensions applied requests a lash lift service at her next appointment. What should the technician advise?
- AThe lash lift can be performed directly over the extensions for extra curl
- BA lash lift will make the extensions last longer without any preparation needed
- CThe client should double the processing time to lift both natural and extension lashes together
- DThe extensions must be removed first, since lift solution will not affect synthetic lashes and could damage natural lashes
Show answer & explanationAnswer & explanation
Correct answer: D. The extensions must be removed first, since lift solution will not affect synthetic lashes and could damage natural lashes
Lash lift solutions work by breaking and reforming disulfide bonds in natural keratin hair, which synthetic lash extension fibers do not have. Attempting a lift over extensions is ineffective for the synthetic lashes and can trap chemicals against the natural lash, weakening or damaging it. Extensions should be removed before performing a lash lift.
Why the other options are wrong
- A. Synthetic extension fibers do not respond to lift chemicals, making this ineffective and potentially damaging.
- B. Lash lifts do not extend the life of extensions; they are separate, incompatible services.
- C. Doubling processing time increases risk of chemical damage rather than solving the compatibility issue.
Lash Lift & Extension Incompatibility
Lash lift solutions rely on breaking disulfide bonds in natural keratin hair; synthetic lash extensions do not respond, so extensions must be removed before a lift.
- Lift chemistry only works on natural keratin structure
- Performing over extensions risks trapping chemicals and damaging natural lashes
- Extensions should be fully removed before scheduling a lift
Memory trick: Synthetic won't lift — remove the extensions first, or risk a rift.