Lash and Brow Services
Domain 7 - Lash and Brow Services
Expect questions on adhesives and patch testing, isolation technique, tint safety, and the boundary between shaping brows and performing a medical procedure.
Lash services
Strip lashes are temporary and removed the same day; individual and volume extensions bond with cyanoacrylate adhesive and last through the lash cycle. Isolate one natural lash per extension - bonding two together causes pulling and damage. Choose length and diameter by natural lash strength; too heavy an extension stresses the follicle. Aftercare: no water, steam, sauna or oil-based product for 24–48 hours; cleanse with lash-safe foam; never pick or pull.
Patch testing
Cyanoacrylate and tints can sensitize. Patch test 24–48 hours before the first service and after any product change, record the result, and do not proceed if there is redness, itching or swelling. Sensitization is permanent, so repeatedly retesting a reactive client is not acceptable.
Brows
Map before shaping: the brow begins above the inner corner, arches near the outer edge of the iris, and ends at the outer corner. Wax, tweeze or thread only below and between the brows - never wax the eyelid. Tints require a patch test and must not be left on longer than the manufacturer states.
Worked example
A first-time lash client reports reacting to nail adhesive. That is the same acrylate family, so risk is high. Patch test and wait; if she reacts, do not apply, and offer strip lashes instead.
Traps
Sharing adhesive drops or returning the lash wand to the bottle contaminates it. Never press a client's lid open with your fingers against her lashes.