Nail Care
Get Strong Nail Hardener
4.7
Rated 4.7 out of 5 stars
938

BESTSELLER
A bottle of LONDONTOWN&
A hand holds a bottle of LONDONTOWN Get Strong Nail Hardener, with text noting stronger nails in one week and protection against chipping, splitting, and breakage for optimal nail strength.
A person’s natural nails touch their face, overlaid with stats showing stronger nails after using Get Strong Nail Hardener by LONDONTOWN.
A nail polish brush applies a clear gel with the text: "LONDONTOWN Get Strong Nail Hardener. Multi-Polymer Technology creates a strengthening layer for instantly stronger nails and continued support over time.
Side-by-side comparison of fingernails before and after 3 weeks using LONDONTOWN Get Strong Nail Hardener shows visible improvement in nail condition and strength, with reduced breakage for the strongest nails yet.
A bottle of LONDONTOWN Get Strong Nail Hardener is shown, featuring multi-polymer technology and Florium Complex to boost nail strength and long-lasting hydration—your secret to stronger, healthier nails.
Get Strong Nail Hardener
A close-up of hands with long, natural nails against a light blue background, featuring text about applying 1-2 coats of LONDONTOWN Get Strong Nail Hardener for the strongest nails.
A bottle of LONDONTOWN&
A hand holds a bottle of LONDONTOWN Get Strong Nail Hardener, with text noting stronger nails in one week and protection against chipping, splitting, and breakage for optimal nail strength.
A person’s natural nails touch their face, overlaid with stats showing stronger nails after using Get Strong Nail Hardener by LONDONTOWN.
A nail polish brush applies a clear gel with the text: "LONDONTOWN Get Strong Nail Hardener. Multi-Polymer Technology creates a strengthening layer for instantly stronger nails and continued support over time.
Side-by-side comparison of fingernails before and after 3 weeks using LONDONTOWN Get Strong Nail Hardener shows visible improvement in nail condition and strength, with reduced breakage for the strongest nails yet.
A bottle of LONDONTOWN Get Strong Nail Hardener is shown, featuring multi-polymer technology and Florium Complex to boost nail strength and long-lasting hydration—your secret to stronger, healthier nails.
Get Strong Nail Hardener
A close-up of hands with long, natural nails against a light blue background, featuring text about applying 1-2 coats of LONDONTOWN Get Strong Nail Hardener for the strongest nails.

4.7
Rated 4.7 out of 5 stars
938
Nail Care
Get Strong Nail Hardener
  • Strengthening
  • Breakage Defense
  • Nail Growth

  • Strengthening
  • Breakage Defense
  • Nail Growth

For your longest, strongest nails

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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

12 ml / .4 fl oz

For best results use as a treatment: Apply 2 coats to bare nails every other day for the first 2 weeks. Get Strong Nail Hardener should be removed before applying a fresh coat of treatment. 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

Get Strong Nail Hardener