Eyelash extensions: a guide for pros
What customers ask, how to win the job, and what to put on your profile.
Offering eyelash extensions
Clients book lash extensions for fuller eyes and a set that lasts between fills. Your patch test process, your mapping and your aftercare plan are what build trust and repeat visits.
What customers ask
- Will the glue hurt my eyes, or cause an allergic reaction?
- How long will the set last, and how often do I need a fill?
- Can you make the set look natural for my everyday wear?
- Can I wear mascara or use oil-based makeup remover with the set?
- How do you remove the set safely?
How to win the job
- On the first call, ask for the look the client wants, whether they have had lashes before and any eye or skin sensitivities.
- Show the set from the front and side, with the client's permission, so buyers can see the full eye shape.
- Run a patch test or a sensitivity check for new clients before the full set.
- Explain the mapping and length plan in plain words, so the client knows what to expect in the chair.
- Give a written aftercare sheet covering what to avoid, such as oil, steam and rubbing the eyes.
- Set a fill schedule at the end of the visit so the client keeps the look between visits.
What to put on your profile
- Photos of sets from the front, the side and after two weeks, shown with consent
- A list of your sets, such as natural, volume and dramatic looks
- Your adhesive and patch test process in plain words, including what you check before the set
- Your sanitation steps for your workspace and tools
- Your cosmetology or esthetics license details as they apply in your state
Follow-up that helps the customer
- Offer a fill reminder timed to the client's natural lash shedding
- Suggest a gentle lash care routine, such as brushing and cleaning the lash line
- Offer a removal and rest plan for a client who wants a break from extensions
Licenses and permits
Check your state's cosmetology or esthetics licensing board for the license that covers lash extension work where you operate, since some states require one. Keep your license and training details current and list them on your profile.
Questions
Do I need a license for lash extensions?
Some states require a cosmetology or esthetics license for lash extension work, and some have specific rules. Check your state board before you take paid bookings.
How do I handle a client who reacts to the adhesive?
Stop the appointment if the client has a reaction, rinse the area as your training taught you, and advise them to seek care if the reaction continues. Keep a record of the adhesive used so you can check it.
What do I do when a client arrives with red, swollen or sore eyes?
Do not apply lashes. Reschedule, and advise the client to see a doctor if the eyes are swollen, painful or discharging, since glue near an irritated eye can make it worse.
About this guide
This national guide is written and checked by infinibell. Rules and conditions differ by place, so local pros are credited on guides for the cities they serve, not on national ones.
Edit history
- Oct 29, 2026: Drafted by infinibell to our content guidelines.
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