A bottle of LONDONTOWN Get Strong Nail Hardener (Professional) with a black cap and blue liquid inside, designed to promote nail growth.

Hand holding a clear bottle of Get Strong Nail Hardener (Professional) by LONDONTOWN against a white background, designed to promote nail growth and strength.

Close-up of a hand with manicured nails beside text advertising "Innovative Multi-polymer Technology" for strengthening the nail&

Get Strong Nail Hardener (Professional)

Name: Get Strong Nail Hardener (Professional)
Brand: LONDONTOWN
SKU: KRPRO-GSNG
Price: 20.0 USD
Availability: InStock
Rating: 4.7 (788 reviews)

For your longest, strongest nails

12 ml / .4 fl oz

4.7

Rated 4.7 out of 5 stars

788 Reviews

$20.00

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Transform nails to be long, strong, and resilient. Two coats of this strengthening treatment featuring innovative, multi-polymer technology create a shield-like barrier that immediately fortifies the nail plate and helps harden over time. Resilience is improved in as little as one week—with a noticeable increase in hardness—and with the infusion of our proprietary Florium Complex, nails get the perfect dose of the hydration and nutrients needed to support healthy nail growth.

Free of phthalates, parabens, silicones, and gluten
Vegan and cruelty-free

For best results use as a treatment: Apply 2 coats to bare nails every other day for the first 2 weeks. During week 3 and 4 apply 2 coats to bare nails every 4-5 days. Repeat process as needed.

As a base coat: Apply one coat to clean nails and follow with your favorite lakur shade.

Ethyl Acetate, Butyl Acetate, Alcohol Denat., Nitrocellulose, Acrylates/Hydroxyesters Acrylates Copolymer, Isopropyl Alcohol, Acetyl Tribuyl Citrate, Adipic Acid/ Neopenyl Glycol/ Trimellitic Anhydride Copolymer, Dipropylene Glycol Dibenzoate, Etocrylene, Brassica Campestris (Rapeseed) Seed Oil, Brassica Campestris Flower Extract, Chamomilla Recutita (Matricaria) Flowe Extract, Cucumis Sativus (Cucumber) Fruit Extract, Oenothera Biennis (Evening Primrose) Flower Extract, Carthamus Tinctorius (Safflower) Seed Oil, Tocopheryl Acetate (Vitamin E), Dimethicone, CI 42090, CI 60725

$20.00

WHY

IT'S SPECIAL

Innovative, clinically tested multi-polymer technology strengthens the nail's keratin matrix
Delivers results in as little as 1 week
Improves hardness instantly and over time
Florium Complex replenishes, conditions, and helps moisturize nails with botanicals and antioxidants
Prevents chipping, splitting, and breakage
Can be used alone as a treatment on bare nails or as a care-intensive base coat

KEY

INGREDIENTS

Innovative, multi-polymer technology provides a protective shield and strengthens the nail's keratin matrix
Nourishing Florium Complex (Londontown’s proprietary blend of Rapeseed Flower Oil, Cucumber Extract, Garlic Extract, Evening Primrose Oil, Chamomile Extract, and Vitamin E) rejuvenates and conditions the nail plate

4.7

Rated 4.7 out of 5 stars

Based on 788 reviews

Total 5 star reviews: 691 Total 4 star reviews: 49 Total 3 star reviews: 16 Total 2 star reviews: 7 Total 1 star reviews: 25

94%would recommend these products

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788 reviews

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KK
Karen K.
Verified Buyer
Reviewing
Get Strong Nail Hardener
I recommend this product
Pros Performs as Described, Would Purchase Again, Exceeds Expectations
Rated 5 out of 5 stars
1 month ago
The Absolute Best
I have used many so called strong nail hardener products from other companies. Nothing comes close to the quality of this from Londontown.
My nails have never been so long and strong!
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HA
Heidi A.
Verified Buyer
Reviewing
Get Strong Nail Hardener
I recommend this product
Pros Gentle, Would Purchase Again, Performs as Described
Rated 5 out of 5 stars
2 months ago
Nails definitely stronger
Nails definitely getting stronger after a week
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LS
LISA S.
Verified Buyer
Reviewing
Get Strong Nail Hardener
I recommend this product
Pros Performs as Described, Exceeds Expectations, Would Purchase Again
Rated 5 out of 5 stars
2 months ago
This is the bomb! Just buy it!
I never write reviews, but this nail hardener is really amazing. NOTHING has helped strengthen my nails before this. I tried every single product on the market. Spent hundreds of dollars trying to heal my nails after gel manicures. They were paper thin and would not grow. Within 2 weeks of using this product, along with the illuminating polish and base coat, top coat... I have nails again. They are strong and healthy. Regrowing healthy nails was something i almost gave up on until these products.
8f you're on the fence... Just buy it! You will not regret it!
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BT
Barbara T.
Verified Buyer
Reviewing
Get Strong Nail Hardener
I recommend this product
Pros Exceeds Expectations
Rated 5 out of 5 stars
3 months ago
Like no other
This was a great surprise. A product that actually works.
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PD
Priscilla D.
Verified Buyer
Reviewing
Get Strong Nail Hardener
I recommend this product
Pros Gentle, Performs as Described, Exceeds Expectations, Would Purchase Again
Rated 5 out of 5 stars
4 months ago
It’s working
I’ve had fake nails for many years and decided to quit getting them. I started using your products, including the cuticle remover. In a short few weeks I can see an improvements and will keep using with the hopes of having healthy and beautiful nails.
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L
LONDONTOWN
4 months ago
Thank you so much for sharing your journey with us! We're thrilled to hear that you've already seen improvements with the Get Strong Nail Hardener and other Londontown products. It’s great to know that you’re on your way to healthier, more beautiful nails. Keep it up, and feel free to reach out if you need any tips along the way! 😊💅