Nanolash Eyelash Serum Reviews: Side Effects, Benefits, Risks, and More

Nanolash is an opthamologist-tested product used to strengthen and lengthen eyelashes. The company claims that it’s safe for sensitive eyes, and that users will begin to see results as early as four weeks.

Nanolash claims to have a unique formula made of natural, high-quality ingredients. With continued use, this formula is designed to leave the lashes looking lush, long, and voluminous.

They claim to have helped customers around the globe achieve the lashes of their dreams.

But do their claims add up?

✅Nanolash Pros

✅ Nanolash is simple to apply, making it an easy addition to any girl’s beauty routine. Users are directed to swipe the applicator across the area where the eyelashes meet the skin. This should be done at least once per day.
✅ The serum is quickly absorbed, and it soon begins to penetrate the skin. It reaches deep into the roots of the lashes. For some users, the unique Nanolash formula leaves them with the long, sultry lashes they desire. For others, however, the Nanolash formula isn’t quite up to the task.

❌Nanolash Cons

❌Nanolash claims that users will begin to see a marked difference in eyelash length at the 4-week mark. At 6-weeks users will see even more growth, and they should achieve full results by week 8. While some users do see impressive growth, others are less impressed.
❌Some negative reviews suggest that an entire round of Nanolash left them with unchanged eyelashes. Other reviewers complain about the price tag. This eyelash serum is more expensive than many of its competitors.

Nanolash Side Effects

❗️ Itchiness

Nanolash claims that it can be safely used on sensitive eyes. Some reviewers disagree, however, saying that they experienced itchiness and other irritation.

❗️ Discolored Eyelids

Some users claim that Nanolash altered the color of their eyelids, leaving the skin around the eyes red and inflamed. This side effect may be especially concerning for people with sensitive skin.

What You Need to Know About Nanolash

Nanolash serum is housed in a small tube, which comes with a precise applicator. Once opened, the serum is supposed to last for up to 12 months. The main ingredient in Nanolash is Trifluoromethyl Dechloro Ethylprostenolamide, a prostaglandin derivative commonly found in eyelash enhancing serums.

This ingredient works by mimicking the natural hormones that lead to long, healthy lashes. The serum also contains water, Euphrasia Officinalis Extract, Sodium Chloride, Alcohol Denat, and Benzalkonium Chloride.

Using the Product

Applying Nanolash is a lot like applying liquid eyeliner. Before applying the serum, users should make sure the skin around the eyes is completely clean. There should be no makeup, leftover eye cream, or dampness.

Then the product should be applied to the upper and lower lash lines, and left overnight so that it can truly penetrate the lash follicles.

The Reviews of Nanolash Eyelash Serum – Are They Good?

Nanolash gets reviews across the spectrum. Some users notice eyelash growth within a few weeks, and are happy with their new, voluminous lashes. Others, however, experience a host of side effects.

These range from the relatively minor, like itchiness and redness, to more serious conditions. Before choosing to use Nanolash, people should do their research. If they have previously experienced irritation related to eyelash growth serums, Nanolash may produce similar side effects.

Some users also complain about the amount of serum they get for the price spent. Nanolash isn’t the most affordable serum on the market, and the 3ml-sized bottle doesn’t always last. Users who are new to the world of eyelash enhancers may want to try a less expensive product before sampling Nanolash.


Nanolash customers tend to have several concerns. For one thing, not everyone achieves full, long lashes. Some users experience irritation, despite the fact that Nanolash claims it can be used on sensitive skin.

This irritation is likely caused by the presence of Trifluoromethyl Dechloro Ethylprostenolamide. While this is a common ingredient in many eyelash serums, it’s not well tolerated by all users.


If you’re looking for an affordable way to boost your lashes, Nanolash Eyelash Serum may not be the product for you. At over $50 per tube, this serum is too pricy for the variable results it provides.


It’s extremely important to educate yourself about lash serum ingredients and technology they use.

We explored the safety of the most popular lash serums on the market to save you time and to keep your eyes safe and secure from the most dangerous ingredients.

NOTE: We analyzed feedback from our readers, read dozens of beauty blogs, watched YouTube videos. We also tried some lash products to provide you useful information and help you with your buying decision.

READ NEXT: Top 3 Eyelash Growth Serums in 2021: Tested, Rated and Reviewed!

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  1. Nanolash is a terribol product im losing my eyelashes maybe is not original product or i dont know but i never will buy aguen

    1. Nanolash has worked for me. Fuller and longer. I do, however, have what now looks like a reddish eyeliner on my lower lids and my top eyelid looks pink. I will try another product — but I’ve been successful with fuller and longer. Have even given up my eyelash extensions. The woman who does the extensions noticed the difference first.

  2. the same thing happened to me. I used Revital Lash it made my LASHES longer but not thicker, I have been using Nanolash for about 3 weeks and lashes are falling out, I just got refund, not sure what to try now ?

  3. Nanolash is pure shit. I ordered 2 and they didn’t work at all and they where Iching p. I emailed them and they lied their asses off telling the opposite of what thair site said, trying to make it my fault because I “didn’t wash my face well enough”.. I haven’t worn makeup for months and have acne so I’m cleaning my face extremely well in an antibacterial soap with the same price you would pay for a unicorn horn that bleaches my skin everywhere it touches so if I ever missed I would look like a cake being mixed. The
    Could have just said they where sorry it didn’t work and so on but they acted like children trying to blame everyone else. I brought it from thair page so I know it’s the real thing.

  4. Nanolash have me severe redness in the eyes which the developed into an eye infection.
    I treated the infection and opened a new Nanolash serum in the hope that maybe the first one was faulty and then the same thing happened again.

    Do not buy as it is a huge waste of money and will just hurt your eyes.

  5. The stuff is rubbish and I wrote to them and they said the same thing that I have to clean my eyes of any traces of make up which i do anyway.

  6. I have been using Nanolash for a month, I can’t see any difference. I even applied it twice a day & still no change. I going to try it for a few more wks. I have spent hundreds of dollars on eye products & haven’t found one that works yet. Guess being 71 they won’t work

    1. hi linda swankier I am also 71 and have tried so many and spent so much money on eyelash growth products. I have very sensitive skin around my eyes and struggle to find something that will work.. I have had lashes break off, fall out and also sometimes they have grown quite beautifully but dont’ last long as soon the irritation starts.. I am going to try this product but have doubts.. if you find a product that works for you please let me know. . I would love to chat with you on this subject.. my email is if you see this note please write me.. thanks candace allen

  7. I was quite shocked to read some of these reviews. I bought Nanolash and applied as directed. It did take slightly longer than 8 weeks to see any difference in the length and thickness of my eyelashes. Four months on I am delighted by the results. I disliked my short, downward pointing lashes. Now I can even get away with not wearing mascara. I have not experienced any worrying side effects. However, have noticed a slight discolouration on my eyelids. Can only assume everyone’s experience will be different due to our different chemical body makeup.

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