Sunday, June 24, 2018
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How Do Eyelash Growth Serums Work?

How Do Eyelash Growth Serums Work

We have all heard about eyelash growth serums, the new (and semi expensive) must have beauty product. I am currently trialing a serum that I will review in a few weeks time. There is a lot of information online about whether these products really work but what got me intrigued was HOW they work. There is surprisingly little information easily at hand.


After A LOT of googling of ingredients, hair growth patterns and changes in human cells . . . this is what I found out!


Lash growing serums were actually discovered by accident. Bimatoprost, the most common active ingredient in lash enhancing serums, was originally used in eye drops to slow the progression of glaucoma. During this treatment patients noticed changes in their eyelashes. They were longer, thicker and darker.


In 2008 Bimatoprost, also known as Latisse, was approved to be used in cosmetics. Since then many different lash (and now brow) serums have hit the shelves. But how exactly does it lengthen and thicken your lashes?

How Do Eyelash Serums Work


How Do Eyelash Growth Serums Work?

Have you ever wondered why or how hair on different parts of your body grow to different lengths? Your eyelashes are hair but you don’t need to go to a hair dresser to trim them like you do with hair on your head. Well let me tell you.


The length of the hair is determined by the length of the anagen phase, the growth stage of the hair cycle. This is the stage when the hair is forming and growing out of the hair follicle. The anagen stage can vary from years long to grow long hair on your head or only weeks to create short hairs like eyelashes.


When applied to the base of the hair Bimatoprost essentially prolongs the anagen stage of the hair cycle, ‘tricking’ the hair into developing for a longer period of time, ‘naturally’ allowing them to lengthen and thicken. Hence creating those longer thicker lashes everyone is talking about! 


There are still a lot of studies around how Bimatoprost can be used, particularly for treatment of hair loss in other areas of the body. This is a very simplified version of how this works but I must say I found the research around this very interesting. Very confusing at times but interesting! Here is one of the articles I read that helped me understand this process better.


Have you tried lash growth serums? Did they work for you? I would love to know your thoughts.


As always, with love,
Alisha Barbara xx

How Do Eyelash Growth Serums Work?



Review overview
  • Lena August 19, 2015

    I’m using one at the moment – haven’t noticed changes yet but I’m hoping for good things!

      • Lena August 20, 2015

        Probably about 3 weeks ago. Maybe I should look more closely at them haha. Thankfully I haven’t had any irritation from it – which one are you using? I’m using Lashtoniic.