Hair growth cycle – understanding hair growth for eyelash extensions.

I often get asked how long do eyelash extensions last and why do eyelash extensions fall out? You naturally lose 3-4 natural eyelashes a day and this blog will hopefully make it clearer why clients need infill appointments to keep that full look.

Eyelash growth stages
Eyelash growth stages

Hair growth is made up of different phases -Anagen, Catagen and Telogen.

When applying eyelash extensions they are placed on natural eyelashes when they are in the Catagen phase. We never apply eyelash extensions while the lashes are in Anagen phase as they are still too delicate and not strong enough to hold an eyelash extension.

The whole cycle for eyelashes is around 90-100 days for an eyelash hair, Which is (100 divide by 7 days) 12 weeks. I know many people advertise their lashes last 12 weeks because of this calculation, however, they are forgetting that the Anagen phase only lasts 30-45 days and those natural lashes aren’t ready to hold eyelash extension. So therefore eyelash extensions can last 4-6 weeks when bonded and cared for correctly.

I personally recommend people come back to me for infills every 2-3 weeks. At this appointment, I find hairs that have gone from the Anagen phase to the Catogen phase, which are now ready and strong enough to hold an eyelash extension. Catagen phase is around 2-3 weeks also, so some of the eyelash extensions I applied at the previous infill appointment will now be in the Telogen phase.

Do I need a break from having eyelash extensions?

If you understand the hair growth cycle and the eyelash technician is applying the eyelash extensions correctly without sticking them together and using light lashes you can now see why there is no need to take a break from eyelash extensions. However, if the technician doesn’t isolate each natural eyelash or uses too much glue this will cause the natural eyelash to come out before it’s cycle causing pain and the lashes become sparse.

Waxing – hair growth

It’s also very important to remember about the hair growth cycle when it comes to waxing as with waxing the idea is to get all the hairs in the same cycle. I have a lot of people try to book appointments with me one week before their holidays and expect silky smooth legs for the duration of their holiday. Sadly this doesn’t happen as new hairs which were developing under the skin breakthrough.


If you feel I have left something important out of this blog post please do comment below. If you would like to guest blog on my site, please do email me.

Hair growth cycle – beauty

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