Lash and brow treatments
Lash and brow treatments
This domain tests tinting, perming, shaping and lash extensions, with emphasis on patch testing, eye safety and hygiene.
Core rules
- Patch test tint and lash adhesive 24 to 48 hours before, behind the ear or in the crook of the elbow, and record the result.
- Brow tint: protect the skin, apply to brows only, time according to manufacturer, often 5 to 10 minutes, and remove thoroughly. Lash tint: use shields, keep eyes closed, time about 10 to 15 minutes.
- Tinting products often contain PPD or similar dyes; check allergies and never use hair dye on lashes.
- Brow shaping: measure thirds; inner brow at the tear duct, arch at the outer iris, tail at the outer corner. Wax, thread or tweeze with skin support.
- Lash perming uses ammonium thioglycolate to break disulphide bonds, then a neutraliser to reform them; silicone shields shape the curl.
- Lash extensions: isolate one natural lash, apply a synthetic lash with cyanoacrylate adhesive, avoid clumping and use 1:1 or trained volume techniques. Infill at 2 to 3 weeks.
- Aftercare: no water, steam, mascara or oil-based products for 24 to 48 hours after tinting, perming or extensions.
Worked example
During a lash tint the client reports stinging. The reasoning is that product may have entered the eye. Remove the product immediately, irrigate with saline or cool water, advise medical advice if irritation persists, record the incident and do not continue.
Traps
Tinting with the eyes open; using hair dye on lashes; failing to isolate lashes; applying extensions to lashes with blepharitis.