NONYX Fungal Nail Clarifying Gel Best Overall
Key details
- Size
- 4 fl oz
- Application
- 3 times a month
- Active Formula
- Ethanoic acid
- Polish Compatible
- Yes
Three applications a month is the detail that makes NONYX our top pick. The 4-ounce bottle is a six-month supply, and the routine fits around polish changes rather than a daily habit. It's backed by a clinical study that found 90% of nails improve, which matters when you're committing to months of treatment.
The formula uses ethanoic acid and is designed to work under nail polish. We like that for anyone who wants to keep wearing polish without adding a separate step. It's the kind of routine that fits into a polish change rather than a daily checklist.
Results are not a week-long fix. Nails grow slowly, so the visible change follows the new growth, and the six-month bottle gives you enough time to see it through. We also appreciate not reordering every few weeks. If you want a low-frequency gel with the strongest evidence in this set, start here; if you need something you can toss in a bag, the pen is the better fit.
Pros
- Clinically studied formula
- Six-month supply per bottle
- Only three applications a month
- Works under nail polish
Cons
- Strong vinegar-like scent
We make this the default for a low-fuss routine: it's clinically studied, needs only three applications a month, and comes in a six-month supply.