





💅 Transform fragile nails into your strongest statement yet!
Nail Tek Xtra 4 is a concentrated, salon-quality nail strengthener designed specifically for severely weak and damaged nails. This award-winning, cruelty-free formula combines calcium, essential oils, and moisturizers to repair, protect, and nourish nails from the root, preventing peeling, cracking, and chipping. Ideal for professionals and busy millennials alike, it delivers long-lasting strength and a polished look that withstands daily challenges.

















| ASIN | B0006PLOX6 |
| Best Sellers Rank | #20,986 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #41 in Nail Strengtheners |
| Brand | Nail Tek |
| Brand Name | Nail Tek |
| Customer Reviews | 4.4 out of 5 stars 6,253 Reviews |
| Global Trade Identification Number | 00709967558110 |
| Item Form | Gel |
| Item Weight | 0.11 Pounds |
| Liquid Volume | 15 Milliliters |
| Manufacturer | American International Industries |
| Manufacturer Part Number | NK14000 |
| Model Number | NK14000 |
| Number of Items | 1 |
| Size | 0.5 Fl Oz (Pack of 1) |
| Specialty | Repair,Damaged,Strengthener |
| UPC | 793379185880 802428941442 709967558110 |
| Unit Count | 1.00 Count |
J**O
This is my holy grail
I’ve been using this stuff for decades after a nail tech literally forced me to buy it after removing my acrylic nails. I’m not exaggerating when I say my paper thin, weak nails did NOT break and had some length to them even after removing acrylics. This stuff is pure magic. Make sure to follow the instructions- one coat a day for a week, remove and repeat. I’ve been using it again for a couple weeks after DESTROYING my natural nails by using too much glue with press-on’s, and it’s helped tremendously. (See pic taken today) My nails WILL grow but, due to an autoimmune disease they aren’t very strong and will break/peel unless I use this stuff. Highly recommend for damaged/hard to grow nails. 💅 🙌🏻
B**A
Perfect solution for impossible nails.
I accidentally stumbled upon this wonderful product in one of the stores. I was skeptic at first, my nails are extremely brittle they break, bend and take every opportunity to chip. I always hated it. But I bought the product because I figured I'd give the dream of having long, beautiful and strong nails one more try. Am I glad I did! This product is simply amazing. It's a miracle in a bottle. I don't know what else to call it! I've noticed a difference in my nails the first week! They became stronger, they grew faster, they didn't bend or chip! The instructions say to put a coat, nail polish and another coat and then add a coat every day. I don't do that. I sometimes forget. Sometimes when I have extra time I put two or three coats at once. And it's fine, because it works either way. I cannot be more pleased with a product that has successfully done what nothing else had managed to do for years! I will tell you, I am not being paid for this review! I recommended this to all of my friends, I sing praises to it every chance I get. Get it. Try it out. Ordering it online is much cheaper than the store - I paid 12$ for this little thing, and even at much more expensive rate it was worth every penny. Since I've ordered two more bottles and when they run out will order more. It is a wonderful product. You will see the difference in your nails within a first week. I also do a lot of cooking and washing and my hands are in the water/dealing with cleaning agents a lot. I try to wear gloves as much as I can, but believe me you will be amazed how little that would matter to your nails. They will be long, strong and healthy. So get it. You will not be disappointed.
T**Y
Really works!!
I recently had my artificial nails that I’ve had for many years removed. My original nails were left looking a horrible mess and I had no idea what to do. I decided to try this product and I was pleasantly surprised with the results. After several coats over 2 days it filled in the ridges and left my nails with a high glossy finish. I would definitely recommend this product to anyone looking for something to help repair badly damaged nails. I wish I had taken pics before applying, however I’m posting pictures after using for 2 days. My reason for the 4 star review is because the odor is quite strong.
S**G
Thin, Damaged Nailbeds? This Stuff WORKS!
After 30 years of acrylic nails, Covid happened. My nailbeds were so damaged, thin, and weak it was literally painful. I ordered this and used it faithfully for 2-3 months, had to regrow whole nailbeds, but it gave them strength and helped me until my nails could stabilize.
L**K
Amazing stuff!!!
My nails are usually very short and brittle and where I work causes them to break easily. I have been using it on the two nails that are grown out for about a week. I paint them and go. It doesn’t chip off or flake off and so far hasn’t even worn off. They have grown that much in a week so I decided to paint all of my nails so they can catch up. But I thought a comparison between how they used to be and how they are now would be helpful. I will never have to pay for fake nails again as long as I can get this stuff. I LOVE IT!!! My nails are quite long now and thick but still flexible. I have filled them down a few times already. I reach into boxes to put product out and a few times I have hit one nail or other on the box or the shelf or wherever. I can feel it bend a little but I have yet to break one because of it. I am extremely happy with this product. And as stated earlier it stays put. I have yet to need to repaint because of it flashing off as soon as it it’s dry. Somehow it seems to bond to my nails and last until they grow it and I need to start again.
U**D
Thickens with use
I was pleased with his product as worked well for me. However I found that as the bottle empties to about 2/3rds full it becomes very thick and would not spread evenly on my nails. Hence a 3 star for waste as I had to throw away 1/3 of the bottle.
B**0
Fantastic Product For Trouble Nails!
This is one product you just have to try if you cannot grow your nails long. My nails are dry, flaky, brittle and thin and trying to get them to grow longer than the edge of my nail bed is a losing battle. I found the Nailtek Xtra (must use the "Xtra" version for trouble nails) almost a year ago and figured I'd try it since I've tried other products that were $27 for a very small bottle (that did not work for me). I was not very optimistic at all since nothing else worked for me, but I am so very glad I tried this one....it works! You put 2 coats on the first day (and can add polish if you choose between the two coats); then you add one coat each day after that up to seven days. At that point, you remove all with nail polish remover and start over with two coats, etc. up to seven days again. This product hardens my nails; and, they look very healthy (within two months of use - had damage from artificial nails), with normal pink under the nail and I bought a ceramic nail file to finely file the tiny rough edges that come up. I am so very, very happy with my long nails now -- I can't say enough good about this product. My only problem I have now is having to cut and file my nails often to keep them from getting so long I constantly knock things over when reaching for something (like my coffee cup). lol Would highly recommend this product to anyone who wants long, beautiful, easy to care for nails. You will be delighted with this product; I'm sure of it.
C**9
Don’t let the warning scare you!
There is a warning on this due to formaldehyde, but when you actually look at the research it’s formaldehyde GAS that is the cancer concern. And it has to be in large, consistent dosages. I definitely don’t want to be exposing myself knowingly to a real risk, but I don’t believe this is applicable here. I have a masters degree in environmental science as well so I’m not just oblivious to chemistry and biology. A tonnnnn of products have formaldehyde in them, but CA is the only state with warnings on it. Unfortunately the warnings are sweeping and not based of the physical state or administration of products. Cigarette smoke contains a TON of formaldehyde btw. In a gaseous state, which is the cancer causing form of this chemical. Yet here we are.
E**A
Soddisfatta!
Ottimo prodotto per unghie fragili! La uso sia da solo che come base per lo smalto colorato e le unghie sembrano decisamente più sane!
A**L
Very useful
Loving this product. Notable difference after a week. Long term worth, to be updated at a later date
P**L
This is the best nail product
This really works
T**S
Base para endurecer unhas
Estou usando mas ainda não deu tempo de ver resultados.
K**E
Miracle product
I hardly write reviews but for this I have to do it. It’s a miracle product, I have used it for just 3 days and my nails are perfect. My nails were severely damaged, thin and peeling due to removing gel, it was so bad, I could feel pain if I touched my nails and would feel heat through my nails if I put them in hot water and would bend if they grew slightly. Now my nails are nearly perfect. No longer bend when making my bed and no pain the touch and in cold water and it’s only been 4 days. I’m in awe.
Trustpilot
1 day ago
5 days ago