6 Nail Hardeners That Actually Work

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6 Nail Hardeners That Actually Work

There’s no shortage of factors at play when it comes to diagnosing the cause behind our brittle nails. Could it be our stress-induced nail biting habit? Maybe it’s our devotion to fortnightly shellac manicures? Our naturally brittle nail beds? Or maybe it’s because we took matters into our own hands and picked off our overgrown SNS *shudders*.  

Whatever the reason, it’s time to invest in a good quality nail hardener. Formulated with growth-promoting proteins, vitamins and collagen, these nail strengthening formulas can offer long and strong results in as little as one coat. 

And if au natural nails just aren’t your thing, don’t stress. Incorporating a nail hardener into your routine doesn’t mean you have to sacrifice your signature polish colour. Nail hardeners come in the form of clear top or base coats to complement your mani, or even as regular polishes infused with ingredients that are going to repair and heal. 

So to transform those weak, brittle and flaking nails, here are our top six nail hardeners that actually work. 

2024’s Top 3 Nail Hardeners

  1. OPI Repair Mode™ Bond Building Nail Serum, $39.95, Myer
  2. Revitanail Intensive Strength, $22.99, Priceline
  3. Sally Hansen Diamond Strength Instant Nail Hardener, $17.95, Healthy Life

OPI Repair Mode™ Bond Building Nail Serum

From $39.95 at Myer

OPI's brand new bond repairing serum

Coming in on the exxier side, this serum isn’t here to mess around. Yes it’s a strange thought to be applying a serum to your nails, but if you’re looking for strong nails in a matter of (six) days then it’s time to start slathering. The serum works to rebuild your nails’ keratin bonds from the inside out, leaving behind strengthened and smoothed nails. 

Want to read more? Read OPI Repair Mode™ Bond Building Nail Serum Reviews here…

Key features:

  • Instant dry time
  • Vegan 
  • Ulti-Plex technology works to rebuild keratin structure

Available at:

Revitanail Intensive Strength 

From $22.99 at Priceline

revitanail iconic calcium polish

If you’re about ready to call 000 on your lifeless nails, we’re here to tell you to put down the phone, and pick up a bottle of the seriously intensive, calcium-enriched polish. Yep, it’ll work miracles on your brittle nails, preventing any peeling or chipping while also working on strengthening the new growth. Bonus: you can apply it as a nourishing base coat!

Want to read more? Read Revitanail Intensive Strength Reviews here…

Key features:

  • Protects nails against dehydration
  • Works as a base coat 
  • Calcium-enriched 

Available at:

Sally Hansen Diamond Strength Instant Nail Hardener

From $17.95 at Healthy Life

sally hansen diamon infused nail hardener

Stop nails from splitting, flaking or breaking with regular coats of the Sally Hansen Diamond Strength Instant Nail Hardener. In as little as five days, the protective formula locks in moisture and allows brittle nails the chance to grow long and strong.

Want to read more? Read Sally Hansen Diamond Strength Instant Nail Hardener Reviews here…

Key features:

  • Infused with strengthening micro-diamond and titanium 
  • Locks in moisture
  • Creates a strengthened shield for your nails

Available at:

essie Hard To Resist Nail Strengthener

From $17.95 at Myer

essie pink or purple tinted hardener

If the clear coats of other strengtheners just aren’t cutting it for you, it’s time to reach for essie. Yep, this tough as well, nails strengthening coat comes in two tinted tones: a brightening glossy pink and a yellow-tone reducing purple. Think it can’t get any better than that? Think again. The clever strengthener works to bond to your nails creating a protective barrier against daily wear and tear as your nails hit the (metaphorical) gym and get jacked. 

Want to read more? Read essie Reviews here…

Key features:

  • Pink (or purple) tint colour
  • Works as a protective barrier
  • Results in as little as three days

Available at:

Mavala Scientifique Penetrating Nail Hardener

mavala scientifically-backed nail hardener

When brushed sparingly onto the nail tip, the Mavala Scientifique Penetrating Nail Hardener absorbs into the nail and hardens immediately to combat splitting or flaking.

Want to read more? Read Mavala Scientifique Penetrating Nail Hardener Reviews here…

Key features:

  • Anti-drying
  • Hardens the nail plate
  • Quick-hardening

Available at:

Manicare Daily Nail Hardener

From $14.95 at Pharmacy Online

manicare milky nail hardener

Instantly create a strong protective shield that helps soft, brittle nails grow longer and stronger. The Manicare Daily Nail Hardener works by sealing the edges of nails for added protection and resistance against tearing. 

Want to read more? Read Manicare Daily Nail Hardener Reviews here…

Key features:

  • Seals in splitting edges 
  • Formaldehyde free
  • Can be used long-term

Available at:

Main Image Credit: @opiaustralia

Have you used a nail hardener before? Do you prefer to have your nails natural or manicured? 

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Comments 68

  1. I’m still faithful to mostly OPI Nail Envy, or sometimes Revitanail, but I do like the look of that Essie Treat Love & Color Nail Polish Collection. I looked it up and there’s some gorgeous colours on offer.

  2. OPI Nail Envy! Love! Been a fan of all things OPI since winning the BH competition. Hard to go back to other brands now. Having said that the Mavala is such a cute little bottle!

  3. I'm assuming that Sally Hansen was the one I used and found great, misfortune8. I still haven't found one to match it – I do realise your comment was 2018 but it's still relevant.

  4. It was lockdown and I stupidly got acrylics again. Then I decided to remove them myself after 7 weeks lol. I clipped them with nail clippers, then lifted the acrylic off with the edge of the nail clippers. It was painful and time consuming but I'm glad I got it all off myself. They're currently just covered up with a base coat, nail polish & top coat and nobody can see the disaster underneath 😀 I've tried nail hardeners in the past but found they didn't really make much difference. Just layer on the base coats & top coats & it's pretty much the same thing imo.

  5. Definitely need a nail hardener my nails break easily and on my toes they are flakey will need to try Mavala Switzerland Scientifique Penetrating Nail Hardener hope it will work on my finger nails and toe nails.

    Wondering if it would be a good idea to get some false Nails for my finger nails. Still trying to decide.

  6. I tried Revitanail many years ago after cancer treatment and it really helped my nails return to normal. They were very hard and did not flake or chip. These days I don't paint my fingernails and I take a daily calcium supplement and eat a lot of calcium rich foods and this keeps my nails in good shape.

  7. I think my fingernails are hard enough, they just get annoying little nicks in them which mean I have to file them or cut them. It's my toenails that need tlc. I have been putting cream on my feet and toe nails hoping that will work but I think its an every day, indefinite thing.