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Strong Nails Set

Name: Strong Nails Set
Rating: 4.78 (2282 reviews)

(2282)

Harden soft, weak nails so they break less and grow stronger.

A simple strengthening routine for nails that are naturally soft, bendy or prone to breakage. Miracle Base Coat hardens nails over time using plant-derived Hexinal, with no formaldehyde.
Self Love Oil keeps nails and cuticles nourished so they stay flexible, not brittle.

In a 2-week consumer trial, 90% of people experienced less breakage.

This set is for healthy nails that need strengthening. If your nails are dry, peeling or flaking, start with the Ultimate Nail Rescue first.

Why people love it

90% experienced less breakage in a 2-week consumer trial
Naturally hardens soft, weak nails using plant-derived Hexinal
No formaldehyde or formaldehyde-releasing ingredients
Supports healthier nail growth and smoother, shinier nails
Nourishes nails and cuticles, helping prevent cracking and peeling

Suitable for both fingernails and toenails.

Prep your nails by wiping them with rubbing alcohol to remove any natural oils.
Apply one coat of Miracle Base Coat to clean, dry nails.
Once your polish is completely dry, massage Self Love Oil into nails and cuticles, morning and night.
Remove with a gentle, non-acetone nail polish remover before reapplying every 5 days.

Do not use Miracle Base Coat, or any nail polish or remover, on dry, peeling or flaking nails. Always patch test first, and stop immediately if the condition of your nails worsens. Keep nail products away from your eyes and mouth.For ongoing nail concerns, see a GP or podiatrist.

What to expect

Week 1 to 2: Nails start to feel harder and less bendy as Miracle Base Coat builds strength. In our consumer trial, 90% of people experienced less breakage within this window.
Week 2 to 4: With weekly application, nails should feel more resilient and break less often. Daily Self Love Oil keeps them hydrated and flexible rather than brittle.
Ongoing: Real, lasting strength comes as healthier nail grows out and replaces older, weaker nail. Fingernails take 4 to 6 months to grow out fully, so this set works best as an ongoing routine, not a one-off fix.

If your nails feel brittle or their condition worsens at any point, stop use and get in touch.

Miracle Base Coat

(2282)

Self Love Oil

(552)

Spore No More Base Coat

(304)

Orders ship from our Melbourne warehouse within 1–2 business days (excluding sale periods) via Australia Post. New Zealand orders ship from our Auckland warehouse.

AU Standard: $5.00. Estimated 2–8 business days.
AU Express: $10.00. Estimated 1–4 business days.
New Zealand: NZD $6. Estimated 1-2 business days.
USA: USD $8.50, or free on orders USD $85+. Estimated 6–9 business days.
Everywhere else: AUD $16 on all orders. Estimated 6–9 business days.

Returns: You can return eligible full-priced products within 60 days of receiving your order for a refund. Read more here.

Free SHIPPING on orders over $75 dispatched in 24 hours 60 day returns Over 22,000+ 5-star reviews

1 Less breakages

90%

of users experienced less breakages

2 Increased hardness

70%

of users said their nails felt harder

3 Improved nail condition

70%

of users noticed an overall improvement in their nail condition

*Based on a 2 week consumer study of 100 participants.

Hexanal

Kester Black’s patented hardening agent. A natural, plant-derived ingredient that works by strengthening the nail’s keratin cells, reducing the risk of breakage and splitting. It can help to smooth and hydrate nails, improve strength and flexibility, and promote healthy nail growth.

FAQs

People with healthy nails that are naturally soft, bendy or prone to breakage, and who want to strengthen them over time.

Anyone with damaged, brittle, peeling or splitting nails should start with the Ultimate Nail Rescue Set first, and move to this set once nails are healthy again. It is also not suitable for nails with a fungal or bacterial concern, or for children, as solvent-based products are not recommended for them. Always read the ingredients, patch test first, and stop use if any reaction occurs. Speak to your GP or podiatrist if you have concerns.

They do different jobs. The Ultimate Nail Rescue repairs and rehydrates nails that are damaged, peeling or splitting, often after gels or salon wear. The Strong Nails Set hardens nails that are inherently soft or weak. In short: Rescue fixes what is damaged, Miracle makes what is weak stronger. If your nails are damaged, start with Rescue, then move to this set for ongoing strength.

Yes. Once your nails are healthy again, the Strong Nails Set is a natural next step to keep them hard and resilient and reduce future breakage.

No. Many traditional nail hardeners rely on formaldehyde, which can leave nails brittle. Miracle Base Coat uses plant-derived Hexinal instead, so it strengthens without the brittleness.

It should not. Hardeners that over-harden are usually formaldehyde-based. Hexinal strengthens while keeping nails flexible, and using Self Love Oil daily keeps them hydrated. If your nails ever start to feel brittle, stop use and get in touch.

In our 2-week consumer trial, 90% of people experienced less breakage in that time. You apply Miracle Base Coat once a week, so give it a few weeks of consistent use. Lasting strength builds as healthier nail grows out.

Use a non-acetone remover before each weekly reapplication.

Yes, it works on both fingernails and toenails.

5 stars: 2033 (89%)
4 stars: 123 (5%)
3 stars: 47 (2%)
2 stars: 28 (1%)
1 star: 51 (2%)

Some of the reviews shown are from related products the merchant grouped with this one.

Strong nail set

You must give it time and use it regularly. Below is photo of nails in February this year and bottom is 3/5/26

Strong nail Set

I do believe this product has improved my nails. I have tried a few things. Only disappointment is the topcoat didn’t apply well and chipped very easily. I still have half a bottle the consistency is hard to use, so I’m using another topcoat product. 24th February to today 3rd may photos. I just need to look after my cuticles better. I do oil three times a day though.

Feedback

These products are true to their word they make the nails stronger and healthier easy to apply and quick drying. Has made my life easier in terms of caring for my nails

MORE than a base coat

My sister bought me this product and I am so impressed. Its literally more than just an amazing base coat. Firstly, it looks gorgeous on its own, it has a beautiful pearly finish that is lovely, plus it also holds colour over it well. But the thing I am raving about is the nails themselves. I tend to keep my nails long, until one of them breaks then they are all filed down short. With this polish on for just a week I noticed there was no breaks and no signs of breaks. Its been about a month now and my nails are so healthy and strong. Happy to share a pic to show what I mean.
Overall - great product, will be buying for myself in future!

Finally found a fix for my soft splitting nails.

After years of soft & splitting nails, I have finally found a solution, Kester Black strong Nail set.
The application of this product has had amazing results. I have been using now for 2 months, diligently applying each week. Easy to use, base & top coat drying quickly & no harsh chemical odors. The Self love cuticle oil to keep skin soft avoiding dry nails is easy to apply at any time.
My nails now feel stronger & finally started to grow without splitting or breaking.
I highly recommend giving this product a try.

Literally just received it and fell in love! 🥰

As a long time gel girlie my nails have suffered! They are literally peeling away, thin and catch and break meaning I have to keep them short constantly.
I wasn’t able to face up to the damage so I kept getting them filed off and redone.
For the new year I want to embrace having healthy and happy nails and here is day 1! I was so excited when I received my mail from KB I couldn’t wait to do my nails! They look so healthy! The base coat and the oil are my favourite! 🤩

Miracle Wonder

I have only just started using this product for two weeks but already my nails appear stronger and longer. It is a very natural shade and looks lovely on my nails. I couldn’t recommend it enough - it’s a wonderful product!

Finally able to grow longer nails 🙌

My nails have never been strong... a simple knock would cause them to break so I've had to keep them ridiculously short my whole life. But recently I started using Miracle Base Coat, applying daily for the first 3 days, and then every second day for a week. Then I remove, clean and start again. I'm finally seeing progress for the first time in my life!

Absolutely works

I hoped from the reviews that this product was as good at restoring nail health and supporting growth as what people said. And it IS!!! My nails are the healthiest ever. I get as long out of a nail polish set with this underneath as I do with a dip acrylic system. Brilliant!

Miracle Base Coat

This, along with your cuticle oil has been pivotal in allowing my nails to heal and grow. I’ve never had long nails previously, no matter what the product or how much I’ve tried.
Love Kester Black!!!

Amazing product

I love this Miracle Base Coat, I use it alone, it doesn't stain your nails & it lasts for ages , I dont have any problems with it chipping & I will never be without this product, I also use it with the self love oil.

Base coat

The best my go to nail polish base

Embarrassing nails

I use the oil on my nails every week and the self love twice a week. For the first time ever I have actually had to trim my nails. They are so much stronger. I’m so impressed after ruining my nails for years with acrylics. My daughter has now sent for some!

Amazing Base Coat

This base coat is not only a great base for coloured varnish, but also a beautiful shimmery varnish when I use it simply with the clear top coat. My nails have the protection and shine I love.

Truly amazed

I was sick of having short, ugly nails due to nervous ripping so I decided to invest - starting with this nail repair kit. My nails look 1000% better and they have grown so much in a month, thanks to the self care nail oil and miracle base coat. I'm so happy with my progress so far and have never been this proud of my nails! I've also been loving the self care routine of doing my nails regularly and looking after me :)

It is a miracle

It looks great and adds strength to my weak nails. Easy to apply and quick to dry. Love it!

Revitalised my nails!

Can’t recommend these nail products enough! I started with the rescue duo from April to July as my nails were thin, flaky and weak from years of on and off acrylics. The difference these have made was amazing. When they began to look healthy, I then started using the strong nails duo and they have never been like this since I was in my early 20’s. My mum even noticed how long and healthy they look now. I’m so grateful that I came across this brand and have put friends onto Kester Black and love it too. Well done ⭐️

Helps my Nails

Really needed it as my nails are strong but have started splitting

Hi Jane, Thank you for your review!

It sounds like your nails might benefit from moisture and hydration repair, rather than focusing on strength. I would recommend to discontinue use of the Strong Nails Set, and use the Ultimate Repair Kit instead.

Natural glossy sheen

I have for the last 4 months been religiously using Rest & Repair Wonder Mask nightly & Self Love Oil twice a day on my nails having had them coated in SNS for last couple of years.
WOW! I can’t believe the difference these CV products have made! Recently as my nails had improved so much I purchased the Miracle Base Coat and am loving the clear pearly glossy sheen even one coat gives my nails!

Magnificent

I have been using this product for five years, and I write a review every time I purchase it again. This is my fourth purchase and third review, and it’s worth it every time.

I have brutally brittle nails. I’m chronically ill, and don’t ever get enough sunlight. This product is 100% the reason that my nails are as long and strong as they are today. I have tried everything; from supplements to Dior Nail Glow. And while the Dior is cute, and the supplements are great for my overall heath, consistent use of this product is the ONLY thing keeping my naturally weak, brittle, flimsy nails the way that they are. Before you ask ‘how do you know for sure?’ let me answer: I’m a horrendous cheapskate who will use my bottle of polish until the very last drop. I literally watch my nails steadily degenerate while I ration my Miracle Base Coat. A new bottle is like brand new, freshly ironed sheets…by which I mean it is utterly magnificent, and worth every penny.

Don’t be me. Buy the base coat. Enjoy annoyingly strong fingernails, that make a satisfying sound of strength when you drum them against your desk. Relish in telling your work colleagues, nieces and baby cousins that yes, they ARE your real nails, and yes, they ARE that long naturally.

Buy the base coat. Just do it.

Magic

This stuff is magic. I am hard on my hands. My nails no longer break or snap easily and the only thing different is that I am using this product. Brilliant product with a stunning sheen. Terrible photo that doesn't do the product justice as I had just trimmed my nails.