LASH CERTIFICATION Cheat Sheet 2026

The 15 highest-yield LASH CERTIFICATION facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is lash adhesive chemically based on? → Cyanoacrylate
2. As a general safety guideline, how much longer than the natural lash should an extension be? → No more than about 2mm longer
3. Which items should be treated as single-use and discarded after each client? → Under-eye pads, micro-brushes, and adhesive rings
4. A client reports redness and swelling of the eyelid 48 hours after a lash appointment. What does this most likely indicate? → A possible delayed allergic reaction to the adhesive
5. What is a 'stickie' in lash extension terminology? → An extension accidentally bonded to more than one natural lash
6. What defines a 'volume' lash set as opposed to a classic set? → Applying multiple lightweight extensions fanned onto one isolated natural lash
7. What is the primary purpose of isolation technique? → To separate one natural lash from its neighbors so the extension bonds to it alone
8. Which mapping style places the longest lengths progressively toward the outer corner for an elongated, lifted look? → Cat eye map
9. What is a recommended best practice for reducing allergic reaction risk with new, first-time clients? → Performing a patch test 24-48 hours before the first full service
10. What is the main reason lash extensions eventually shed even with perfect application? → The natural lash it's bonded to completes its growth cycle and sheds
11. Which curl type is most commonly requested for a classic, natural-glam lash look? → C curl
12. How long should a client generally avoid water and steam after a fresh full set? → Roughly 24-48 hours
13. Roughly how far from the lash base should adhesive be placed? → Roughly 1-2mm from the lash base
14. What is the single biggest cause of poor lash extension retention on the client's side? → Oil-based skincare or makeup removers near the eyes
15. Which of these is generally considered a contraindication requiring the service to be postponed? → An active eye infection such as conjunctivitis