Health and Hygiene: Understanding proper sanitation practices to ensure the safety of both the client and the lash technician. This includes learning about disinfection methods and safe handling of tools.

Anatomy of the Eye and Eyelashes: Studying the structure of the eye and natural lashes to understand the best techniques and styles to use while avoiding damage.

Contraindications: Learning when and why not to apply eyelash extensions, such as in the presence of eye infections, allergies, or sensitivities.

Familiarity with different materials used (synthetic: mink, silk) and curl, thickness, and length variations.

Classic vs. Volume Lashes: Learning how to apply individual extensions (classic) versus multiple extensions to one natural lash (volume).

Isolation and Placement: Mastering the skill of isolating each natural lash and placing extensions accurately without touching the skin or sticking lashes together.

Retention Techniques: Tips and tricks to ensure that the extensions last as long as possible, including proper adhesive use and aftercare advice.

3. Practical Hands-On Training

Practice on Mannequins: Beginners often start practicing application on mannequin heads to build their confidence and technique.

Live Model Practice: Once the basics are understood, students practice on live models under the supervision of a certified instructor.

Assessments and Feedback: Instructors provide feedback on lash isolation, adhesive use, lash styling, and overall application.

Client Education: How to advise clients on maintaining their extensions, including cleaning techniques and what to avoid (e.g., oil-based products).

Refills and Removal: Training on how to fill in lashes as they grow out and how to safely remove extensions without damaging natural lashes.