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The secret world of Eyelashes – 10 fascinating facts

You can be forgiven for not spending very much time thinking about your eyelashes but they are an amazing construction which helps protect the health of your eyes that perhaps deserves a little more TLC.

1. Eyelashes are there to help protect our eyes from sweat, dirt, dust and other foreign objects, by doing this they reduce the likelihood of eye irritations or infections

2. The optimum eyelash length is associated with enhanced attractiveness – research has shown this to be neither not too short or too long. The most attractive eyelash length is about one-third to one-fourth of the width of the eye

3. Eyelashes grow at a slower rate than the hair on our heads, only about 0.1mm per day.

4. Between 1-5 lashes drop out each day due to natural wear and tear

5. Their slow growth rate means it takes 5-6 weeks to replace a lost lash

6. Eyelashes grow to be about 10-12mm long. They tend to break off naturally so don’t get much longer than this

7. There are on average 75-80 lashes on out bottom lid and 90-160 lashes on the top lid

8. Once grown our eyelashes typically last for 4-9 months before being shed. New lashes will the growing to take its place

9. The eyelash is structurally very similar to curly hair hence the natural curves. This ‘curve’ is seen less in Asian populations

10. There are 3 growth stages: the anagen phase (active growth period), the catagen phase (transitional period), and the telogen phase (resting period)

If you notice your eyelashes losing condition help is at hand. Lash Builder restorative serum is now available and is free from harsh chemicals which may irritate dry or sensitive eyes. Lash builder works while your sleep for results in 6-8 weeks.

If you experience eyelash loss or thinning always seek the advice of your eye care professional.


Thibaut S, De Becker E, Caisey L, Baras D, Karatas S, Jammayrac O, Pisella PJ, Bernard BA. Human eyelash characterization. Br J Dermatol. 2010 Feb 1;162(2):304-10. doi: 10.1111/j.1365-2133.2009.09487.x. Epub 2009 Sep 1. PMID: 19804590.

Patel BC, Lopez MJ, Joos ZP. Anatomy, Head and Neck, Eyelash. [Updated 2022 Jul 25]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 January

University of British Columbia. Department of Psychology.

New research: Beauty is in the eye(lash) of the beholder. January 25, 2021


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