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Summary
A high-performance base coat nail polish designed to strengthen and repair weak, brittle nails. This nail strengthener doubles as a nail strengthening base coat and targeted nail treatment with an 85% bio-based formula that supports long-term nail care.
Features
- Base coat nail polish for weak and brittle nails
- Nail strengthener from the first application
- Nail strengthening base coat that helps reduce breakage
- Ideal nail prep step before color or as a treatment alone
- 84% bio-based treatment formula
- Can be worn alone or under color
- Vegan & cruelty-free
Key Ingredients
- AHAs: Promote natural nail regrowth and stimulate cell renewal
- PHAs: Help gently strengthen and improve nail texture
- Silicon: Hardens and visibly strengthens nails over time
Research Results
- Proven results*
- 100% observed harder nails
- 97% observed healthier nails
- 93% noticed improved nail quality
- Clinical test conducted on 21 women after 3 weeks of use*
Item 77003014
How to use the Nail Hardener Base Coat|
- Apply the Nail Hardener Base Coat on bare nails as a treatment or before applying Green Manucurist polish or classic nail polish.
- As a restorative nail care treatment, apply twice a week for long-lasting stronger nails.
- For a complete nail care routine, apply a drop of Green Oil or Complete Serum daily.
Ethyl Acetate, Butyl Acetate, Nitrocellulose, Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer, Acetyl Tributyl Citrate, Alcohol, Glycolic Acid, Aqua (Water), Etocrylene, Gluconolactone, Isopropyl Alcohol, Dimethyl O X Obenzo Dio X Asilane, Ci 60725 (Violet 2)
Shipping Restrictions : This item cannot be shipped via air.
This brand is excluded from most Ulta Beauty coupons.
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Most Helpful Positive Review
Gorgeous polish. Took the test,
Gorgeous polish. Took the test, and was given the rigid nail kit. I bought it and it's exactly what I've been looking for. The perfect color and formula for my brittle uneven dry nails. The polish makes my nails feel thick and solid and lasts with no chips for over a week. I play with pottery, I am ...
Most Helpful Critical Review
Don't feel or see any
Don't feel or see any difference.
83 results
I love this basecoat! It
Reviewed at

I love this basecoat! It leaves a gorgeous shine and it stays on for so long. Normally anything peels off within days for me but this stays on quite well (ofc it helps that it's transparent). I also feel like my nails feel stronger and healthier from the first day that I've been using it. It's also great in combination with nailpolish, but I do notice some chipping then. But it's defenitely my go-to when I want healthy shiny natural looking nails!
Very happy with this product.
Reviewed at

Very happy with this product. My nails are definitely harder after two weeks of using it
This is absolutely amazing base
Reviewed at

This is absolutely amazing base coat! My nails look better after 2 applications, they grow faster and look much healthier.
Great strengthener! I use it
Reviewed at

Great strengthener! I use it with Active polish nails.
Super
Reviewed at

Super