Search  for anything...

Nail Tek Foundation 3, Ridge Filling Strengthening Base Coat for Hard and Brittle Nails, 0.5 oz, 1-Pack

  • Based on 1,284 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

Buy Now, Pay Later


As low as $3 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.


Availability: Unavailable
Fulfilled by Investigative Shopper
Available payment plans shown during checkout

Size: 0.5 Fl Oz (Pack of 1)


Color: Foundation 3


Features

  • Mask Nail Damage & Imperfections: Fills in any unsightly ridges, uneven nail surfaces, and masks any nail irregularity and visible damage while providing a special blend of ingredients to strengthen and repair nails.
  • Protect & Promote Healthy Nail Growth: Nail Tek Foundation 3 works as a nail hardener shielding your nails while working to help your digits recover! With regular use, it promotes healthy nail growth. Specially formulated for hard, brittle nails
  • Strengthens Natural Nails: A special blend of strengtheners, conditioners, micro-fibers, and natural fillers to help strengthen nails and prevent brittleness so they are less likely to break. Wave goodbye to dry, chipping nails!
  • Easy-to-use Anti-yellowing Base Coat: To use, simply apply one coat before applying your favorite nail polish for superior polish adhesion, protection from yellowing stains, and an ultra-smooth nail surface.
  • Award-Winning Nail Therapy & Made in the USA: Nail Tek has been voted as Best Natural Nail Treatment by Salon Professionals! This pro-approved nail strengthener is 100% cruelty-free, DBP-free, and Toluene-free making it safe and protects natural nails from damage.

Brand: Nail Tek


Item Form: Gel


Item Weight: 0.11 Pounds


Liquid Volume: 0.5 Fluid Ounces


Specialty: Repair,Growth,Strengthening,Hardener,Strengthener,Healthy


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1.3 x 1.3 x 3.4 inches; 1.76 ounces


Manufacturer recommended age ‏ : ‎ 18 months - 8 years


Item model number ‏ : ‎ 813


UPC ‏ :


Manufacturer ‏ : ‎ American International Industries


Best Sellers Rank: #197,193 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #239 in Nail Strengtheners


#239 in Nail Strengtheners:


Customer Reviews: 4.3 4.3 out of 5 stars 1,284 ratings


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Nail Tek #3
Size: 0.5 Fl Oz (Pack of 1) Color: Foundation 3
In this era of the virus, I had to stop my nearly 25 year "habit" of first acrylic nails and then about 10 years ago gel nails in various forms. I am 60. My nails have ridges (hereditary occurrence) and are pretty brittle. On a couple of my nails the ridges reach the end of the nail and split and tear or break. Then they snag clothes or tear and are painful. No wonder I've been covering them for so long! I have always loved my manicures, but they are not going to be a part of my life until after the virus is well under the radar. I purchased 4 different ridge filler/strengthening products - this Nail Tec #3 was one. It says "ridge filler for hard, brittle nails". PROS First, as a ridge filler, it works - after about 4 coats. It finishes with a matte, very slight transparent white. After about 4 coats, you nail surface looks smooth and since it's not a shiny gloss finish, they look more natural. I was really happy about how quickly each layer dried. Very fast, no assistance in drying. It stays on for several days. CONS Haven't found one yet. So far, this is definitely worth the effort and cash. I never hesitate to update my reviews should new info seem useful. ... show more
Reviewed in the United States on February 15, 2021 by ForeverYOUNG

  • I'm in love with this product!
Size: 0.5 Fl Oz (Pack of 1) Color: Foundation 3
I am in love with this product. My nails have always been strong and grow fast; however, within the last year or so I began to develope ridges. I don't know why, but I did, and they would show through my nail polish. I put 2 coats of this on, waiting an hour between coats, then another coat on my left pinky and ring finger because those ridges are the most pronounced. Wow! the surface is now smooth. Sure the ridges are still a bit apparent close up, but the surface is smooth. I would be okay with a clear top coat without being concerned over the ridges. But with a coat of color the lines will be indistinguishable. I know other reviewers say to only use 1 coat, but use what you feel is necessary. It's your product! I would whole-heartedly recommend this product. ... show more
Reviewed in the United States on November 5, 2024 by G. Shermack G. Shermack

  • Pretty good ridge filler
Size: 0.5 Fl Oz (Pack of 1) Color: Foundation 3
I’ve had ridges in my nails forever. Not sure what caused them but I got my hands smashed in a folding lawn chair when I was a kid. I was too young to remember but it must have been bad because I ended up in the ER and that was in the ‘50’s when you had be pretty bad for your parents to take you there. Nothing broke just looked really flat from what my Mom told me. It was just the beginning of many trips to the ER for me. Yup, one of those kids. My nails have gotten worse with age and now split easily up the nail and get chipped at the ends and snag on things. This filler has a pretty big brush and is thick so it goes on pretty easily. It dries pretty quick, looks dry in 2-3 min and is not sticky after about 5-7 min. I think to get an even texture on my nails and fill in all the ridges it takes 2 coats. But wait to let it thoroughly dry before the second coat or it makes a mess. It lasts well for about a week to 10 days unless you do something with your hands in water for some time and then it’ll start looking wrinkled and start peeling. I tried using a top coat to make it last longer but it did the same thing. I don’t have a lot of experience with fingernail polish since I’m a 66 yr old man. I feel like my nails feel stronger after doing this for a few months but they do still chip on the ends. I’ve started filing my nails instead of cutting them and that has helped a bit too. I might try a different ridge filler to see if it lasts longer but I’m happy with this one for now. I think it’s a good product and would recommend it for someone with some serious ridges and weak nails. What I’d like to do is get a coat on the tips or front of the nail and keep them from chipping. This brush is too big and puts too much on to do that and it ends up under the nail which just feels weird and I’m not sure it’s a good place to have nail polish. ... show more
Reviewed in the United States on November 27, 2023 by Scott Wilson

  • Very good product.
I made a mistake and bought the wrong # set!!! #3 is for hard and brittle nails. Which I don't have! I needed # 2, for Soft Peeling Nails. Also I Need #4, for WEAK, DAMAGED NAILS. Which mine are very thin and Weak, Flake or SPLIT EASILY. Words from packaging. I hope the seller reads this, for I know this product works, I just purchased the wrong two pack bottles 4. I need #2 and #3 Packages. I'll be glad to purchase those 2, and return the unused #4 set. Thank you very much. Best Regards, Sue ... show more
Reviewed in the United States on March 15, 2024 by Sue N.

  • Really like it
Size: 0.5 Fl Oz (Pack of 1) Color: Foundation 3
I've tried too many base coats and treatments. My nails are brittle and crack, so most make the problem worse because they harden the nails even more. I haven't had that problem with this base coat. It also fills ridges enough to make polish look nice and it doesn't peel.
Reviewed in the United States on January 6, 2025 by af367

  • It really works
Yes, if the ridges are deep, you need 2 coats. But as mentioned by others, I love the matte and natural finish The base coat product seems to work.. too soon to tell. The last one, moisturizer … well the instrucciones call for daily use, I thought it was an oil but it is an actual polish. Not sure how I feel about daily applications so only doing it twice. And I did get 4 bottles of that one :( Update: I have been using this product consistently for weeks now. The nails are stronger, however it chips between a couple of days. No wonder they suggest to apply the top coat daily. ... show more
Reviewed in the United States on August 31, 2024 by Esperanza Hunter

  • Quality product
Size: 0.5 Fl Oz (Pack of 1) Color: Foundation 3
Small bottle but works great & keeps nails hydrated…recommended over some other brands.
Reviewed in the United States on June 4, 2025 by mslydi

  • Expected better from this product
I purchased the 4 pack every bottle is yellowish and the brushes are ragged. If you use more than one coat it peels off, so don’t bother putting your colored polish on top it wont last before it peels. I sat it next to a bottle of the nail tek 2 that I have that is clear. Since I can’t return it into the garbage it goes. ... show more
Reviewed in the United States on April 22, 2025 by rob rush rob rush

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...