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NYK1 LashForce Concentrated Lash Serum is a dermatologist and ophthalmologist-tested formula designed to naturally stimulate eyelash and eyebrow growth. With a potent 8ml XL bottle, it delivers visible results in 6-8 weeks through a simple 10-second twice-daily application. This serum cleanses follicles, boosts blood flow, and nourishes roots to achieve up to 3x longer, thicker, and darker lashes and brows—perfect for professionals seeking a polished, natural look without extensions or tinting.





| ASIN | B09WW2M33L |
| Best Sellers Rank | #40,501 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #107 in Eyelash Primers |
| Customer Reviews | 4.0 4.0 out of 5 stars (2,569) |
| Is Discontinued By Manufacturer | No |
| Manufacturer | NYK1 |
| Package Dimensions | 5.91 x 3.27 x 1.14 inches; 2.4 ounces |
I**E
Best working product so far
I have tried other brands, but this one is my favorite. It might be a bit pricier but it's worth it. So easy to apply. Not sticky and not clumpy. After 2 weeks the difference is clear. No need for false lashes as mascara will show of the thickness of your lashes easier and enhance the length too. I will buy this again. It does what it says on the pack.
K**.
WORKS GREAT. MORE PRODUCT, NO PAIN
I Love this. I just ordered the brow formula. I find the application process so easy. I love that you get so much product. My eyelashes are coarse. I like when the formula gets on the lashes. It seems to thicken them. I have used Revitalash, which works well, but is $110 and the tube dries out quickly. Same with the brow formula. I saw this and thought if it works, it would be so cost effective. I switched every other day until the revitalash ran out. Well the NYK1 works as well. I’ll write a review on the brow serum after giving it a chance. Ps. I also tint my own lashes black which makes them look crazy noticeable and long. I recommended Aryana lash tint. (Also can be bought at Amazon) It is vegan, but I have accidentally got some in my eye and it hurts. Rinses out easily, but does sting. The best part, after you get used to it, you can tint them beautifully yourself. I had this done professionally and this product looks better and lasts longer. (sometimes 2 months) I recommend the 2 together….. serum and tint. What a difference! And no mascara necessary. EVER
D**G
Seems to be working….
I have Hashimotos Thyroid and have battled hair & lash fallout for 3 decades. That’s right, 30 years. At first the Dr prescribed Lattese which made my eyes constantly red, but grew lashes so long that they banged uncomfortably into my sunglasses. Since I didn’t like the idea (or cost) of using a chemical on my eyes, I switched to Grande Lash MD. It was less $$ than lattese and worked pretty well, at least for the first 6 months. It seemed to be working less well as the months went by so I began trying other brands of herbal type lash serums but none worked hardly at all. I almost didn’t order this one - it just seemed too inexpensive - but I was more than tired of shelling out buckets of $$ for lash serums. So I gave it a go. Here’s what’s different from other brands: Big tube with plenty of product They instruct you to use twice daily: am & pm. They tell you to massage it into the base of your lashes. While I’d rather it wasn’t made in China, it seems to be a safe product. I’ve had zero irritation or stinging - even when accidentally getting it into my eye. I stopped using my Grande Lash & started using this. Within a week I began seeing extra length on my lashes. By the second week my lashes were noticeably thicker - meaning there were more lashes growing - not that they were becoming more coarse. And last night (about a month of use) 2 friends both commented on how long & lush my eyelashes looked. So I will definitely be ordering again.
D**A
ZONT ZO IT, ZONT ZO IT GURL
I ordered this product because of the recent positive reviews. My eye curler cut out a good chunk of my eyelashes because I used a cheap one (Btw I HIGHLY recommend the Shiseido eyelash curler. I KNOW I KNOW It is pricey, but please don't cheap out. Dont let this happen to you !! ) and my confidence went down so lash serum was the option for me. Many were on the market, but all others led me here, and the price is medium it's not cheap like 10 + but it is not expensive, like 86+ it was medium so it was with the positive reviews, I WAS SOLD. I was so excited to start; it came in cute packaging and felt expensive for a lash serum. The smell was ew, but I brushed it off because I was finally going to grow my lashes back !! I used it only during the night and always on the lash line or above (NEVER ON THE EYE). On my 1st day it went well. It was nothing bad I just woke up with a lil blurry vision; that WAS NOT NORMAL LMAO, but again, i brushed it off. By the 4th day, i only woke up to slightly red eyes but i brushed it off because i desperately wanted my lashes back. During this period my eyes had gotten very sensitive with the sun, and headaches. I dont get headaches and my eyes were never sensitive. On the fifth day, I woke up as if I had been crying all night, SO RED it stung closing my eyes too. I STOPPED. I didn't last a week with this product, I really wanted it to work, but I couldn't keep hurting myself even if I really wanted lashes, NOT WORTH IT. Thankfully I was able to return it, it's been a while now, but what I have noticed is that my lashes have been falling off a bit I know it's because of this product, but apparently, it is normal because I did go against my natural growth, SO BEWARE with that. In conclusion, if you have sensitive eyes, DO NOT USE THIS PRODUCT!! And if you notice redness, stop, girl ZONT BE LIKE ME. I wouldn't recommend this product, but again THIS IS MY EXPERIENCE !! everyone is different and works for some people but it's not for me.
A**A
Buy it and use it
I love this stuff. Works (if you are consistent) as well as the expensive ones.
K**R
Applied day and night doesn't work
The stuff did not work on me at all I do not recommend you waste your money
S**N
easy to use, easy to get results, satisfied easily.
C**E
Using this for several months now & it's making a difference
R**Y
I cannot believe this worked but it really does. I had a bald spot along my eyelash line (about a half a centimetre long of baldness) and lashes were not growing back… for months!!!!! I’m so happy because I’m finally seeing my lashes growing and my bald spot is filling in. I use it every morning and before bed and I’ve only applied it along the bald spot for the last two weeks since purchasing it. I highly recommend!!!!!!! I’m so happy because I honestly thought I’d have a bald patch there forever. I can’t believe it works but it really does.
K**S
I love this stuff. Re Ordered at least 5 times. It works!
C**N
J’utilise ce sérum depuis plus de deux ans.. très bons résultats ..? Recommande ce sérum pour la repousse des sourcils
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