Sally Hansen® Hard As Nails® Hardener Treatment
2 varieties available

Sally Hansen® Hard As Nails® Hardener Treatment

BY SALLY HANSEN #1 in Nail Treatments

4.5 out of 5 stars
  • 5 Stars68%
  • 4 Stars21%
  • 3 Stars8%
  • 2 Stars2%
  • 1 Star1%
4.51 / 5 based on 493 Reviews


The original strengthener, helps prevent chipping, splitting, cracking, long-lasting protection
Toughen up weak, fragile nails! Reach for Hard as Nails®, the original strengthener from Sally Hansen. Our unique blend of Film-formers shields nails, for long-lasting protection against chipping, splitting and cracking. When you want your nails to grow longer and stronger, Sally Hansen’s Hard as Nails® is here to help! Apply to bare nails and under nail tips. Use Hard As Nails® alone, or wear as a strengthening base coat for your nail color. A must-have for every mani kit, Hard As Nails® from Sally Hansen is the original nail clinic in a bottle!® Get longer, stronger nails that shine! Step into your always-on salon. No menu. No rules. America’s #1 nail brand, Sally Hansen puts the power of self-made beauty in your hands, with salon-tested solutions and on-trend colors.


Clear: Butyl Acetate, Ethyl Acetate, Isopropyl Alcohol, Nitrocellulose, Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer, N-butyl Alcohol, Trimethyl Pentanyl Diisobutyrate, Camphor, Benzophenone-1, D&C Violet No. 2 (Ci 60725).<Br/><Br/>Natural Tint Shine: Butyl Acetate, Ethyl Acetate, Nitrocellulose, Phthalic Anhydride/Trimellitic Anhydride/Glycols Copolymer, Isopropyl Alcohol, Trimethyl Pentanyl Diisobutyrate, Diisobutyl Adipate, N-butyl Alcohol, Benzophenone-1, Acetyl Tributyl Citrate, Alcohol Denat., Aqua/Water/Eau, Stearalkonium Hectorite, D&C Red No. 17 (Ci 26100), D&C Red No. 33 (Ci 17200), D&C Red No. 6 Barium Lake (Ci 15850).

How To Apply:

  • Apply to bare nails and under nail tips
  • Use Hard As Nails® alone, or wear as a strengthening base coat for your nail color.
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Top Questions See all 200 Q&A

Sally Hansen® Hard As Nails® Hardener Treatment
Sally Hansen® Hard As Nails® Hardener Treatment
Reviews (493)
Q&A (70)
Media (45)
Leave a Review
  • "But if you have the money I'd rather use opi start to finish which is a nail strengthener, base coat and top coat all in one" in 6 reviews
Chandra D.
46 reviews
Review for: Natural Tint more...
I wasn’t really sure if this would work on my nails to be honest. After having acrylics on for years my natural nails were really thin and brittle; I was constantly paranoid that I would really hurt my nails doing daily tasks. After using 2 coats of the hardener treatment 2x a week for the past 6 months, my nails are better than ever!!! Love love LOVE this product!
Marjorie S.
Newport News, VA
643 reviews
Beauty Junkie Expert Level 4
Review for: Clear more...
Love all Sally Hansen products especially the nail hardeners. My nails are so healthy and strong due to using this product. I’m a repeat user especially when I remove the gel tips from my nails. Recommend others to try this product.
Jessica W.
90 reviews
Beauty Junkie Expert Level 2
This has helped my nails so much! I already love my nails, but they tend to grow so quickly. They get thin and break easily because of this. Hard as nails is perfect for me because I dont always have a color on my nails; but this alone leaves them looking shiny, healthy, and polished. It keeps them healthy and prevents the nail from breaking. This is also a key step to any manicure in my opinion. A good buy from the drug store!
Amanda J.
724 reviews
Beauty Junkie Expert Level 5
Review for: Clear more...
I always saw my grandma using this while I was growing up and then I started using it when I became a teenager. I love the natural tint that this gives your nails. This works really well at keeping your nails from splitting. This is a must have if you have naturally long nails!
Kimberly S.
Proctorville, OH
685 reviews
Beauty Junkie Expert Level 5
Review for: Clear more...
The Sally Hansen nail hardener is a fantastic product! So many nail products claim to harden nails, but are basically just a clear coat. This does give a bit of shine, but there are obviously ingredients in it that make your nails feel like they have their own 'coat' of armor (no pun intended). If you're looking for something to help keep nail breakage at bay, I highly recommend this.
Megan R.
3 reviews
Review for: Clear more...
This is now my go-to product for my at home mani/pedi.  I have very thin nails that easily break and polish that is always chipping off within a day or two.  I use this as a base coat and a top coat and it extends the life of my polish and keeps my nails from breaking!  I'm not sure if it is actually helping my nails to become harder over time, but I can see results when I have the hardener on.  With it being so cost effective and a mani life-saver, I would definitely recommend this! 
Lauren N.
267 reviews
Beauty Junkie Expert Level 3
What can i say, this will always be a classic cult following product that i hope never goes away! It's been on the shelves for ages and it's just as effective and fabulous as ever! Perfect barest hint of next to nothing pink gel look if you have enough layers on. I like to use this beneath and on top of my polish or by itself. The shine is awesome. It's got a slightly thicker viscosity to it than regular polish i feel, but that's partly what makes it so effective at hardening. I just love this stuff!
Family G.
45 reviews
Beauty Junkie Expert Level 1
Review for: Clear more...
I love this nail hardener, I have use this product for the past five years. I definitely see a difference in strength after use. I have bought this several times and would continue to buy. I definitely recommend this product to anyone.
Renee D.
8 reviews
For a low cost brand, this is a really great product. I can't explain how long I've used this product. Since high school at the very least. After trying lots of different brands and products I still constantly reach for this. I use it regularly. It feels great on the nails. It's light and air almost like nothing's there at all.
Leslie H.
Melrose Park
29 reviews
Beauty Junkie Expert Level 1
Review for: Natural Tint more...
I bought this product after getting acrylics for the first time. When I got them taken off, my nails were ruined. As a last ditch effort before going to get my nails done again, this product was referred to me by a friend and I am so impressed. Though my nails do not look any better, after just one day of wearing this, I could definitely tell the difference. My nails are so much stronger, and I am not worried about them constantly breaking until the damage from the acrylics is gone.
Kayla C.
Aurora, IL
70 reviews
Beauty Junkie Expert Level 3
Does this product really help strengthen nails? I have tried everything and my nails are still paper thin.
Kristin C.
Homewood, IL
345 reviews
I have never seen this product before. Does Sally Hansen still make this and sell it in stores today?
Sabrina S.
Weston, VT
18 reviews
Does this really work?
My nails are short and not very strong. Will this really help get them strong? I want to start painting my nails.
Jasmine R.
2 reviews
Has anyone noticed that this polish chips/peels very easily? I use it as a base as well as a top coat, but it just peels off what ever colored polish I pair it with. Hardly lasts more than a few days.

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