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Eyelash Extension Application Course
Lash Hair Anatomy

As the client's natural lash grows (just like head hair grows), the extension grows with it and if too much time passes in-between appointments, the lash extensions may turn and poke the client in the eye.

THE LASH GROWTH CYCLE

First, the anagen phase is the growth phase of hair follicles. Often called “baby lashes”. This lasts about 30 days. 

 

The second, catagen phase, is a transitional phase following the anagen phase. It concludes the active growth phase of the eyelash and releases it from the hair root. This phase lasts between approximately 2-4 weeks.

 

The third, telogen phase is the resting phase of the hair follicle. This ends the growth cycle the eyelash is pushed out by the new eyelash growth.

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LASH HAIR ANATOMY 

Lash hairs start growth down in the subcutaneous fat layer where they have a blood supply. There are multiple layers, like an onion, of a hair. Check out the illustrations below to understand the anatomy of a hair. 

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Quiz yourself! 

Answer the questions below and then check your answers by clicking the down arrow next to it. Just a reminder...there is a final exam at the end of this course and in order to receive your certificate, you will need to pass it. Re-watch the videos and re-read the information above if you didn't pass the quiz below.  

Reflection Questions:

What was the most interesting thing you learned in this section?

Why do you think understanding and being able to clearly communicate lash anatomy and the growth cycle are important for client trust?