NYK1 LashForce Eyelash Growth Serum image
Disclaimer: This product was gifted to me for review purposes, but all thoughts are my own and unbiased

In recent years, lash growth serums have surged in popularity. I see a lot of ads on TikTok promoting lash serums with incredible results, as well as more products cropping on beauty retailer sites. Lash serums can vary dramatically in price, though, and as with any product, some work better than others.

I’ve been using the NYK1 LashForce Eyelash Growth Serum for about 6 weeks and wanted to share my honest review along with before and after photos. Naturally, I’ve got fairly long lashes, especially when I curl them. However, they’re not noticeably long or thick naturally, so I wanted to see whether I could get fuller and lengthier lashes after using the serum.

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About the NYK1 LashForce Eyelash Growth Serum

The NYK1 LashForce Eyelash Growth Serum is a cruelty-free and vegan formula that’s designed to give you longer, fuller, and thicker lashes in as little as 2 weeks.

Rather than just conditioning your lashes and brows the NYK1 Serum’s unique formulation works by stimulating blood flow, whilst also clearing the hair follicle of blockages and provides essential ingredients to encourage healthy growth.


The INCI list is purified water (aqua), disodium phosphate, citric acid, cellulose gum, swertia japonica extract, panax ginseng extract, biotin, sodium chloride, vitamin B2 (riboflavin), and benzalkonium chloride. It’s also free from oil, which means you can use the serum in coordination with eyelash extensions.

The NYK1 lash serum retails for £44.95 for 8ml. One tube typically lasts 3-4 months, according to the brand.

NYK1 LashForce Eyelash Growth Serum image

How to use the NYK1 LashForce Eyelash Growth Serum

Using the NYK1 lash serum is very straightforward:

  1. Apply the serum like you would an eyeliner in your waterline. Swipe the serum as close to the lash line as possible.
  2. Use the serum twice a day for optimal results.

NYK1 LashForce Eyelash Growth Serum before and after

I’ve been using the NYK1 LashForce Eyelash Growth Serum for about 6 weeks, once in the morning and once in the evening. I applied the lash serum to my upper lashes only. To show you my results, I took some before and after photos (below). These photos showcase my natural lashes, without any product applied or using an eyelash curler.

As you can see, particularly in the top 2 sets of photos, my lashes are longer and fuller since using the serum. I’m going to share my honest review below.

Honest review of the lash serum

I’d thoroughly recommend the NYK1 LashForce Eyelash Growth Serum to anyone wanting fuller, longer, and thicker lashes.

The serum is very easy to apply and not irritating at all. My eyes are quite sensitive, so I’m really glad this is gentle around my eyes, as the last thing I wanted is for my eyes to start watering and for all the product to come off my lashes!

The serum’s consistency is quite watery and thin but not too thin where the product doesn’t stick. It clings to lashes easily.

My eyelashes are longer, more voluminous, stronger, and thicker since using this serum. When I use an eyelash curler or apply mascara, the benefits are particularly noticeable. My eyelashes don’t fall out as much since applying the serum regularly either, which is another big plus.

Overall, I couldn’t be happier with the results and think this lash serum meets all of its claims.

Rating: 5 stars