

💅 Strengthen your nails, elevate your confidence — don’t let weak nails hold you back!
Nail Tek Formula 4 Xtra is a protein-enriched nail strengthener designed specifically for weak and damaged nails. Infused with hydrolyzed wheat protein and calcium, it repairs, hydrates, and fortifies nails while promoting natural growth. This scientifically formulated, toxin-free treatment offers flexible application options and proven durability, making it a top choice for professionals seeking resilient, healthy nails.

















| ASIN | B0D55HN8WJ |
| Best Sellers Rank | #15,195 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #29 in Nail Strengtheners |
| Brand Name | Nail Tek |
| Customer Reviews | 4.4 out of 5 stars 7,131 Reviews |
| Item Form | Liquid |
| Liquid Volume | 0.5 Fluid Ounces |
| Manufacturer | American International Industries |
| Specialty | Dehydration & Dryness, Strengthening |
| UPC | 709967378275 |
C**K
This product works, worth it
This is a great value for what you get. Two nail strengtheners that actual work. The coating stays on even with extreme work. I was able to have mine stay on for about a week before it started to peal off or get damaged and I work with a lot of tools. It also helps keep your nails looking clean and nice while it does the work strengthening and growing your nails. This also helps me not bite my nails knowing there is someone on it. Overall great product and I’m seeing a difference in my nails.
K**.
Fingernail Help!
I have been struggling with nail breakage for several years and have tried vitamins, supplements, collagen, etc. in attempt to improve my nail health with no success. A few months ago I was getting a mani/pedi and the technician used one of the nail products from Nail Tek on my fingernails when I told her about my nail breakage issue. It really seemed to help so I looked for it online and found the whole line of Nail Tek products. I ordered this nail strengthener and immediately started using it. My nail breakage has definitely improved. While I am being cautiously optimistic still, I really think I found the solution with the product.
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.
E**N
Great product
Love this!
A**R
Works great!
I rarely do a product review but this nail polish has been amazing. My nails kept breaking and flaking. Nothing helped. My doctor had no advice. I've been wearing this for 2 weeks and my nails are significantly stronger and they stopped breaking and flaking. I highly recommend it!
C**O
No muy bueno
No muy bueno no hizo el efecto que recomendaron .
L**A
Best nail strengthener ever and ever :-) and recommended from many nail salons
The best nail strengthener I have ever used. I have super brittle nails and and this polish has repaired and helped my nails to grow. Highly recommend!
A**Y
Muy buena
Bueno
Trustpilot
2 weeks ago
3 weeks ago