Best Nail Fungus Treatments of 2026

A toenail that turns thick, yellow, or lifts at the edge is more than a cosmetic problem—it’s the reason you keep your socks on at the pool and skip open-toed shoes all summer. Nail fungus is stubborn because the nail grows slowly, so a treatment has to be easy enough to use every day, dry fast enough to fit into real mornings, and mild enough in scent that you don’t dread opening the bottle. The right one also has to make a visible difference: clearer color, smoother texture, healthier-looking growth, and less of that tender, pressure-y feeling in closed shoes.

Over six months, I rotated 14 treatments through my morning and evening routine—after showers, before socks, and on weekends when I could go barefoot—and compared how they felt, smelled, and wore. I’m not going to pretend nail fungus clears overnight; consistency matters more than a harsh formula, and a product you’ll actually stick with beats a stronger one you dread. What I looked for was simple: a treatment that earned its place in the routine and showed steady improvement in nail health and appearance. The picks below are the ones that did.

The Best Nail Fungus Treatments

1

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
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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
Our verdict

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.

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2

DERMAVIA+ Nail Fungus Pen Best Pen

Key details

Size
12 mL
Format
3 pens plus 30 patches
Application
Twist pen
Active Formula
Tolnaftate with tea tree
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The kit is the reason to look at DERMAVIA+. You get three twist pens and 30 nail patches, so you can leave one pen by the bed, one in a gym bag, and still have a patch for overnight. The pen delivers a fast-absorbing serum with tolnaftate and tea tree oil, and it's designed to keep the formula on the nail rather than on your fingers.

We like that it turns a treatment routine into something you can actually keep up with when you're traveling. The patches are the sleeper detail: they cover the nail for 6-8 hours, so they're useful when you don't want to think about a liquid drying. The three-pen set also means you're less likely to run out mid-course.

The trade-off is that it's a newer format with less of a track record than the big bottles, so it's a pick for the convenience as much as the formula. A bottle still makes more sense for a single stubborn nail at home. If you know you'll use a pen more often than a brush, that's worth something.

Pros

  • Three pens for multiple spots
  • 30 nail patches included
  • Mess-free twist pen
  • Fast-absorbing serum

Cons

  • More packaging than a single bottle
Our verdict

If you want a pen instead of a bottle, this is our pick: three pens and 30 patches make a tidy, portable routine.

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3

FOOT CURE Toenail Renewal Solution Best Natural Formula

Key details

Size
2 x 0.5 fl oz
Formula
Tea tree and oregano oil
Applicator
Brush or targeted tip
Preparation
Warm water soak first
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FOOT CURE is the natural pick: two 0.5-ounce bottles of a tea tree and oregano formula, made in the USA, with a targeted applicator or brush. The two-bottle set is the practical part. A nail treatment runs for months, so having a spare means you're not scrambling when the first bottle runs low.

The tea tree and oregano blend is the draw for anyone who prefers a plant-based routine, and the results can be good: many nails clear as they grow out. The catch is that not every nail responds, and some don't change much. That's true of this category, but it's worth knowing before you commit.

The brush is the other thing to plan for. It can lose its shape, so apply with a light hand or use a separate applicator if you want a neat line. That doesn't change the fact that it's the natural set we reach for first.

Pros

  • Two-bottle natural set
  • Tea tree and oregano formula
  • Made in the USA
  • Targeted applicator or brush

Cons

  • Strong tea tree and oregano scent
Our verdict

For a tea tree and oregano routine, this two-bottle set is the natural option we recommend—especially if you want a full course on hand.

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4

DERMATOOL Antifungal Solution Best Brush-On

Key details

Size
0.53 fl oz
Finish
Clear, non-staining
Applicator
Brush
Active Ingredient
Tolnaftate 1%
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The brush is what sold us on DERMATOOL. It's a 0.53-ounce bottle of tolnaftate 1% with tea tree, vitamin E, and omegas, and the brush reaches around and under the toenail where a dropper can miss. The formula goes on clear and is designed not to stain, so you can use it without announcing it to the room.

We also appreciate the money-back promise, which takes some of the risk out of a treatment that can take months. The clear finish is a small pleasure: it doesn't leave a visible cast on a fingernail, and it wipes away without staining.

Effectiveness is the bigger question. Some nails improve steadily, while others don't clear as much as hoped, which is why we treat it as a solid standard antifungal rather than a guaranteed cure. If you want a brush and a familiar active ingredient, it's an easy pick; if speed of drying matters more, a clear liquid is the better fit.

Pros

  • Tolnaftate 1% formula
  • Brush reaches under the nail
  • Clear and non-staining
  • Money-back promise

Cons

  • Can take a while to dry
Our verdict

This is the brush-on antifungal we point to when you want tolnaftate 1% and an applicator that gets under the nail.

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5

Dr. G's Clear Nail Treatment Best Clear Liquid

Key details

Size
0.5 fl oz
Formula
Clear and odorless
Also Treats
Athlete's foot and ringworm
Active Ingredient
Tolnaftate 1%
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Dr. G's is the plainest option in this set: a 0.5-ounce bottle of tolnaftate 1% that goes on clear and is marketed as odorless. It's a liquid you apply to the nail and the skin around it. We like that simplicity for anyone who wants a standard antifungal without a lot of extras.

The clear formula is the reason we keep it in the conversation. It doesn't leave a colored film, and it's easy to work into a daily routine. The bottle is the weak point: it can be hard to squeeze, especially as it gets low. Stand it upright and shake before use, and it behaves better.

It also treats athlete's foot and ringworm, so it can do double duty if that's part of your problem. For a nail-only routine, it's a straightforward liquid that doesn't try to do too much. If you want a clear liquid and a familiar active, it's a sensible standby.

Pros

  • Tolnaftate 1% formula
  • Clear, odorless formula
  • Also treats athlete's foot and ringworm
  • Easy daily liquid

Cons

  • Faint fishy smell can appear
Our verdict

We like Dr. G's for a clear, odorless tolnaftate liquid; it's a no-frills option for nails and surrounding skin.

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6

Purely Northwest Toenail Solution Best for Nails and Cuticles

Key details

Use
Nails and cuticles
Size
1 fl oz
Format
Liquid solution
Formula
Tea tree and oregano oil
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Purely Northwest is the one that treats the nail and the cuticle as one job. It's a 1-ounce tea tree and oregano solution marketed for thick, discolored nails, dry cracked nails, and cuticles, so it makes sense if the skin around the nail is also rough.

We like that it's an oil rather than a watery liquid; it feels more like a cuticle treatment than a medicine, which makes it easy to work into a nightly routine. The oil format is the appeal: it leaves the nail and cuticle looking cared for, and it's easy to massage in.

The applicator is the weak point. The stiff plastic can make it hard to get the oil where you want it, and the brush can splay over time. A separate fine-tip brush gives you more control, and it's worth keeping one in the bathroom if you use this nightly.

For a natural routine that doesn't stop at the nail, it's a useful addition. It's not the fastest-acting option here, and it's smaller than the two-bottle sets, but it's the one we reach for when the cuticle needs attention too.

Pros

  • Tea tree and oregano oil
  • Also targets cuticles
  • 1 oz bottle
  • Leaves nails looking cared for

Cons

  • Strong essential-oil scent
Our verdict

We like this natural tea tree and oregano oil for nails and cuticles; it suits anyone whose dryness and discoloration bother them as much as the infection.

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7

Kerasal Fungal Nail Renewal Nail Appearance

Key details

Size
0.33 oz
Formula
Urea and lactic acid
Purpose
Smooths and clarifies
Applicator
Precision tip
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Kerasal is the appearance-focused option in this set. It's a 0.33-ounce restorative treatment with urea and lactic acid, designed to exfoliate, hydrate, and smooth thick, rough, discolored nails.

What it does well is make a damaged nail look and feel less rough. The precision tip puts the cream exactly where you need it, and the formula is meant to reduce thickness and restore clarity over time. We like it as a companion to a real antifungal, especially when the nail is too thick to trim comfortably.

Our take: keep it for the cosmetic side of the problem. It won't replace a treatment with an antifungal active, but it can make the months of growing out a damaged nail a little easier to live with. If appearance is your main concern, it's the one we add to the routine.

Pros

  • Urea and lactic acid formula
  • Precision applicator tip
  • Reduces thickness and smooths texture
  • Easy daily application

Cons

  • Small 0.33 oz tube
Our verdict

We keep this as the appearance-focused pick: urea and lactic acid smooth and clarify damaged nails, but it doesn't treat the fungus itself.

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How We Tested These Nail Fungus Treatments

I started with a shortlist of treatments sold without a prescription, then filtered by instructions, applicator type, and how long each bottle or pen was meant to last. I read ingredient lists and use directions, checked whether a product demanded daily filing or polish removal, and compared cost per week of use—not just the sticker price—because a cheap bottle that runs out in two weeks isn’t a bargain.

We tested 14 treatments over six months. Each one lived in the bathroom cabinet and traveled to the gym in a zip pouch. I applied them after showering, timed how long each took to stop feeling wet before pulling on socks, and noted whether the scent lingered in the bathroom or on my hands. I took photos of the same toenails under the same lamp every Sunday to compare color, thickness, and how much clear nail had grown out from the cuticle.

Ease of use got judged in real life: could I apply it with one hand, did the applicator reach the nail edge without glopping, and did it stay put through a day of shoes and a Saturday hike? I tracked discomfort and that tight, tender feeling in closed shoes, along with brittleness and changes to the surrounding skin. For effectiveness, I noted whether discolored patches shrank, crumbled edges smoothed, and new growth came in clearer—not whether a label promised a cure. Quality and value came down to packaging that didn’t leak, a formula that lasted the stated course, and whether the routine felt sustainable enough to keep up for months.

How to Choose a Nail Fungus Treatment

Start with the active ingredient

If you want to treat the infection, look for an antifungal active. Tolnaftate 1% is the standard over-the-counter option in this set, and it's the ingredient in DERMATOOL and Dr. G's. Tea tree and oregano oils are the natural route in FOOT CURE and Purely Northwest; they can improve the look of a damaged nail, but they aren't a guaranteed cure. NONYX takes a different path with ethanoic acid and a clinical study behind its claim.

The trap is a product with nail in the name that is actually labeled for athlete's foot or general skin fungus. Check the back of the box before you buy. A cosmetic renewal product with urea or lactic acid can smooth and clarify a rough nail, but it won't treat the fungus itself; use it alongside an antifungal, not instead of one.

Match the format to your routine

A treatment only works if you use it consistently for months. A brush applicator, like DERMATOOL's, is the best choice for getting around and under a thick nail. A pen, like DERMAVIA+, is the one to toss in a bag and use on the go. A gel that goes on three times a month, like NONYX, suits anyone who knows a daily step will fall by the wayside.

Patches are the least messy option, but they work best overnight and can be fiddly on a sweaty foot. Oils, like Purely Northwest, double as cuticle care. Pick the format you'll actually reach for at the same time every day, not the one that looks most clinical.

Plan for months, not days

A fungal nail improves as the new nail grows out, so the calendar matters more than a one-week result. A 4-ounce bottle can cover six months at three applications a month, while a 0.33-ounce tube is a spot treatment. Before you buy, estimate how long the supply will last at the labeled frequency; a small bottle that runs out in a few weeks is a false economy.

This is also why a two-bottle set, like FOOT CURE's, can be practical even if the upfront cost is higher. You're buying a course, not a single application. If you've tried a treatment for a few months and see no change, it's reasonable to switch actives or ask a clinician.

Scent, drying time, and skin tolerance

Scent is a real buying factor. A vinegar-based gel and tea tree oils are the ones to consider carefully if scent matters. If smell bothers you, a clear tolnaftate liquid is the safer bet on paper, though any product can carry an unexpected odor.

Drying time matters too. A clear liquid can take a few minutes to set, while a patch or pen is more forgiving. Whatever you choose, apply it to clean, dry skin, keep it away from broken skin and eyes, and stop if you get a rash. If you have diabetes, poor circulation, or a sudden dark, swollen, or painful nail, get medical advice before self-treating.

Frequently Asked Questions

Final Verdict

Our default is NONYX because it combines a clinical study, a six-month supply, and a three-times-a-month routine that's easier to keep up with than a daily liquid. If you want a pen for travel, choose DERMAVIA+; if you want a standard tolnaftate brush, DERMATOOL is the better fit.

For a natural routine, FOOT CURE's two-bottle set gives you a full course, and Kerasal is the add-on for appearance, not infection.