Nail Fitness Nail Rejuvenation & Hardener

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Were you born with weak, wimpy nails? Or, perhaps you've recently removed hard gels or acrylics and your nails are seriously damaged!  We can help. Just read the reviews below.

Nail Fitness promotes the growth and strength of natural nails with its unique formula of nail hardening proteins. 

0.5 oz

Nail Fitness Nail Hardener

We realize nail polish by nature is not "Natural" (and we're all about natural!), this nail hardener is so great for strengthening natural nails, we just had to include it in our line.


  • Keratin
  • Calcium
  • Gelatin
  • Wheat Protein
  • Soy Protein

Non-yellowing, and quick drying.

Disclaimer: We are a retailer for Nail Fitness, not the manufacturer.

Receive 3 generous FREE samples of Parisian's Pure Indulgence products with every purchase of Nail Fitness!  


Day 1 - To clean nail surface apply 2 coats Nail Fitness. Colored nail polish may be worn over Nail Fitness. Apply 2 coats colored polish, follow with top coat.

Day 2 - Apply 1 coat Nail Fitness

Day 4 - Apply 1 coat Nail Fitness

Day 7 - Remove all polish. Apply nail & cuticle cream -- preferably Shea Brûlée Cuticle cream

Let the Shea Brulee cream sit on nails for 3 minutes, then rinse with warm water.

Start again with Day 1 instructions to apply 2 coats Nail Fitness

Customer Reviews

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