What People Are Saying?

Rated 4.8/5 | 8,100+ Trusted Reviews

Finally, something that actually works!

I dealt with toenail fungus for 7 years and I'd tried the antifungal pens, natural serums, even the creams, and none of it ever did anything. I think it's because those treatments just weren't strong enough and they'd rub right off the second I put my socks on. But what could I do, I had to wear them at work and at the gym. So yeah, I'd definitely recommend this polish because it actually works, and it keeps working while you go about your day. I'd say my nails were cleared up in about 16 weeks.

Rating:

5/5

Roy H.

Written on 07/23/2026
This polish delivers.

Over 10 years fighting toenail fungus and I'd tried everything, even oral Terbinafine and Itraconazole, but nothing ever lasted. I was discouraged and honestly kind of hopeless because I'm diabetic, so healing is a lot harder for me. Then I saw the podiatrist who created this polish on TV and it clicked right away because what she was saying made total sense. She said the fungus has to be hit at the root, continuously. So I listened, ordered 3 bottles, and thanks to that I'm not scared to invite my friends to the pool anymore.

Rating:

4.5/5

Yvette A.

Written on 07/15/2026
Nobody noticed a thing.

I'd had toenail fungus for years and honestly, I was disgusted with myself and way too embarrassed to show my feet, I was scared of being humiliated. I got so anxious about it that I'd wear socks to bed so I wouldn't give it to my wife. I'd gotten into the habit of turning down anything that meant taking my shoes off, until one day I saw a Facebook ad about an antifungal polish. After reading all the positive reviews I ordered 6, and here are my results in the photos after 5 months. It covers the infected nails so well that I felt cured from day one.

Rating:

5/5

Garrett K.

Written on 03/19/2026
My husband ordered me 6 bottles.

My nails were in rough shape, yellow, thick, and brittle. It was honestly ugly, and I'm pretty sure I picked it up in the locker room at my gym. Either way, I was terrified of passing it to my kids, and I didn't have time for homemade remedies or foot soaks. I asked my husband to find me something fast, simple, and effective, and if possible something that had actually been lab-tested. He found this antifungal polish. It's a gem, look at the results in just 25 weeks!

Rating:

4.5/5

Simone B.

Written on 01/05/2026
My nail healed in 2 months!

My podiatrist recommended this antifungal polish, so I ordered it online right after my appointment, and honestly it's the best decision I've made. Once it showed up, everything got so much easier. I'd put 2 coats on my nail once every 3 days, and every time I reapplied it was so reassuring to see it looking a little healthier. Great product, it deserves all the hype.

Rating:

5/5

Marcos S.

Written on 04/20/2026
My friend who's an esthetician recommended it.

She offered me a free pedicure and when I turned it down, she asked if I had toenail fungus, and I didn't lie to her. Just goes to show honesty pays off, because she gave me a ton of good advice and even handed me a bottle of this polish. It worked so well that I ordered 3 more, and after 4 months I was finally done with that damn fungus for good. And I gotta say, having nice nails again feels amazing, my confidence is through the roof.

Rating:

4.5/5

Bonnie V.

Written on 02/11/2026
The only brand with a formula based on OTC antifungals.

I caught toenail fungus 11 months ago and what drove me crazy more than anything is that I'm an extremely clean person. I was obsessed with my nails, every day I looked at them I felt dirty, so I spent all my time disinfecting everything, my shoes, my towels, the shower floor. My brother's a farmer and he'd gotten fungus from those heavy boots he wears, so he recommended this polish, and just like it did for him, it worked perfectly. Now I wear flip-flops without feeling ashamed.

Rating:

4.5/5

Terrence W.

Written on 05/03/2026
The fungus is gone at the root and I'm not at risk of reinfection anymore.

5 years living with this thing. My nails used to be crumbly and falling apart, they smelled bad, and the skin around them was irritated, so I never wanted to be barefoot, which is why I stopped going to the beach. Then when my company invited me to a weekend seminar in Honolulu, I was so stressed. My Vicks VapoRub clearly wasn't cutting it, so I went to my doctor and he told me he'd heard really good things about this antifungal polish. I followed the instructions for 18 weeks and my nails grew back healthy. Turns out it wasn't that complicated after all.

Rating:

5/5

Loretta E.

Written on 06/28/2026

DISCLAIMER

Please read this page in full. By continuing to browse our website or by purchasing our products, you confirm that you have read, understood and accepted everything below.

1. WHAT THIS PRODUCT IS

KillFungus LABS nail polish is a cosmetic product. It is a colored nail lacquer, formulated with cosmetic ingredients and manufactured in a facility certified GMP and ISO 22716.

It is not a drug. Cosmetic products are not approved by the U.S. Food and Drug Administration. This product has never been submitted to, approved by, or evaluated by the FDA.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease or medical condition, including onychomycosis or any fungal infection.

2. ABOUT OUR BRAND NAME AND PRODUCT NAME

Our brand name and the name of our product refer to the ingredients contained in the formula and to the audience we serve. They describe ingredients that are recognized in cosmetic use, and the concern our customers are dealing with.

They are not a claim that this product treats, cures, eliminates or prevents any infection or disease. No wording used anywhere on our website, our packaging or our advertising should be understood as such a claim.

3. WHAT THIS PRODUCT IS NOT

We want you to buy with a clear understanding of what you are buying.

It is not a medical treatment for nail fungus. In the United States, no over-the-counter product is approved to treat fungal infections of the nail. All approved nail fungus treatments are available by prescription only.
It is not a substitute for seeing a doctor or a podiatrist.
It has not been the subject of a clinical study. Any description of ingredients or of how they work refers to published research on those ingredients in general, not to testing carried out on our finished product.
It does not contain drug-level concentrations of any active ingredient. Our formula contains cosmetic levels of undecylenic acid, tea tree oil and vitamin E. For reference, the FDA over-the-counter monograph for undecylenic acid as an antifungal drug specifies a concentration of 10% to 25%, applies to skin conditions only and not to nails. Our product is a cosmetic and is dosed far below that range.

4. WHAT IT CAN AND CANNOT DO FOR YOU

What it does. It covers, colors and improves the appearance of nails that are discolored, thickened or damaged, from the first application. It contains conditioning and botanical ingredients intended to care for the appearance of the nail while it grows out.

What it cannot do.

It cannot make a damaged nail become healthy instantly. A toenail takes approximately 6 to 12 months to grow out completely, a fingernail 1 to 4 months. Nothing applied to a nail can accelerate this biological process.
It cannot guarantee that a fungal infection will disappear. Even prescription treatments prescribed by physicians achieve complete cure in only a minority of cases.
It does not allow other topical treatments to be applied over it. If you use a medicated nail lacquer, cream, serum or any topical treatment, you must remove our polish first so that your treatment can reach the nail. Applying a treatment on top of our polish will not work.
It does not allow foot soaks to reach the nail. Our polish forms a water-resistant film. Vinegar, baking soda, salt or any soak will not penetrate it. To benefit from a foot soak, remove the polish first.
Like any nail polish, it covers the nail. A covered nail is less exposed to air and light than a bare nail. If your only objective is to fight a fungal infection by medical means, a bare, dry, aired nail is preferable. Our product is designed for people who want a presentable nail while they manage their condition, not as a replacement for medical care.

5. IT DOES NOT PROTECT YOU FROM INFECTION OR SPREAD

Do not rely on this product as a protective barrier.

It is not intended to prevent a fungal infection, and it must not be used for that purpose.
It does not prevent an existing infection from spreading to your other nails, to your skin, or to other people.
Wearing it does not make it safe to walk barefoot in swimming pools, showers, locker rooms, gyms or any shared space.
It does not replace the hygiene measures normally recommended for fungal conditions.

6. DO NOT REPLACE A MEDICAL TREATMENT WITH THIS PRODUCT

This is the most important warning on this page.

If a physician, podiatrist, dermatologist or pharmacist has prescribed or recommended a treatment for your nails, continue it. Do not stop, interrupt, reduce or delay a prescribed treatment in order to use our product, and do not use our product instead of seeking medical care.

Our product is a cosmetic. It is intended to be used alongside proper medical care, never in place of it.

If you are unsure whether our product is compatible with your treatment, ask your healthcare provider before using it.

7. GET A DIAGNOSIS BEFORE ASSUMING IT IS FUNGUS

Nail discoloration, thickening, crumbling, lifting or deformation can have many causes other than fungus, including trauma, psoriasis, eczema, lichen planus, bacterial infection and, in rare cases, melanoma.

A dark, black or rapidly changing nail should always be examined by a physician without delay.

We strongly recommend obtaining a diagnosis from a qualified health professional before assuming that your condition is fungal.

8. CHECK YOUR NAIL REGULARLY

Because our product covers the nail, it also hides it.

A colored polish will conceal the natural appearance of your nail, including any change in that appearance. You must therefore remove the polish regularly to inspect your bare nail, so that you can notice any worsening, any new symptom, or any sign that requires medical attention.

Do not allow a cosmetic product to prevent you from monitoring your own health.

9. WHO SHOULD NOT USE THIS PRODUCT WITHOUT MEDICAL ADVICE

Do not use without consulting your physician first if you:

have diabetes, peripheral neuropathy, poor circulation or any vascular condition affecting your feet
have a weakened or compromised immune system
are pregnant or nursing
intend to use the product on a child
have a nail that is painful, bleeding, oozing, or where the surrounding skin is red, swollen or infected
are undergoing chemotherapy or any treatment affecting your nails or skin
have a known allergy or sensitivity to essential oils, in particular tea tree oil

If you have diabetes, please take this seriously. Foot conditions in diabetic patients can progress rapidly and require medical supervision.

This product is intended for adults. Purchases should be made by persons aged 18 or over.

Do not apply over artificial nails, gel, acrylic, or any other nail product, and do not apply to a nail that is lifting or detached from the nail bed.

10. ALLERGY AND SENSITIVITY

This product contains essential oils, including tea tree oil (Melaleuca alternifolia), which is a recognized contact allergen for some individuals.

Before first use, perform a patch test. Apply a small amount to a limited area of skin, wait 24 hours, and check for any reaction.

Read the full ingredient list on the bottle before use, particularly if you have known allergies.

11. SAFE USE AND HANDLING

For external use on nails only. Do not apply to broken skin or open wounds.
Do not ingest. If swallowed, seek medical advice immediately.
Avoid contact with the eyes. If contact occurs, rinse thoroughly with water.
Flammable liquid. Keep away from heat, sparks, open flame and hot surfaces. Do not smoke while using. Store in a cool, dry place, tightly closed.
Keep out of reach of children.
Use in a well-ventilated area.
Do not share your bottle or your nail tools with other people. Fungal nail conditions can be transmitted.
If the product changes in color, texture or odor, stop using it.

12. REMOVAL

Our polish is removed with a standard nail polish remover, which is a separate product with its own instructions and precautions. Read and follow the instructions of the remover you use.

Removers can dry out the nail and the surrounding skin. Frequent application and removal may affect the condition of the nail plate. Allow your nails periods without polish.

13. STOP USING THE PRODUCT IMMEDIATELY IF

you experience irritation, redness, swelling, itching, burning, blistering, pain or any discomfort
the skin around the nail becomes inflamed, warm or painful
your nail becomes painful, bleeds or starts to separate from the nail bed
your condition worsens in any way
you develop any symptom you did not have before using the product

In any of these cases, stop use and consult a healthcare professional.

Similarly, if you see no improvement at all after several months of consistent use, stop relying on a cosmetic solution and consult a physician or podiatrist.

14. RESULTS AND EXPECTATIONS

Individual results vary, and no specific outcome is guaranteed.

Results depend on many factors outside our control, including the severity, duration and underlying cause of your condition, your nail growth rate, your age, your general health, your circulation, your footwear and hygiene habits, and how consistently you use the product.

Nails grow slowly. Any change in the appearance of the nail itself takes months. The immediate benefit of our product is cosmetic coverage, not biological change.

Some people will see no improvement at all in their underlying condition.

15. TESTIMONIALS, IMAGES AND REVIEWS

Results shown are not typical. Testimonials and reviews reflect the individual experience of the person who wrote them. They are not necessarily representative of what you will experience and must not be taken as a guarantee of results.
Some images used on our website and in our advertising are illustrative. They may have been created, staged, enhanced or generated digitally, and may not depict actual customers or actual results. Where an image shows a genuine customer result, it is identified as such.
Before-and-after images are illustrative. Lighting, angle, camera, nail preparation and the polish itself all affect appearance.
Product colors may appear differently on your screen than in reality, depending on your device and its settings.
Where we display statistics or percentages, these refer to the source cited alongside them.
Where a review has been given in exchange for a discount, a free product or any other benefit, this is disclosed alongside it.

16. OUR CONTENT IS MARKETING

Our website, emails, social media and advertising are marketing communications. They are written to present our product favorably and use persuasive language.
Some of our pages are advertising content, not news articles, editorial pieces or independent consumer reports.
The information we publish is provided for general informational purposes only. It is not medical advice and must not be considered a substitute for professional medical advice, diagnosis or treatment. Never disregard or delay professional medical advice because of something you have read on our website.
We are not physicians, podiatrists or pharmacists. We do not provide medical consultations, and no doctor-patient relationship is created by your use of our website or by any exchange with our customer service.

17. CONTENT PUBLISHED BY THIRD PARTIES

Comments, reviews, messages, posts and any content published by other users on our website or on our social media accounts reflect their authors' own opinions and experiences only. We do not verify, endorse or guarantee the accuracy of such content, and it must never be treated as medical advice.

18. IF SOMETHING GOES WRONG

If you experience any adverse reaction, unexpected effect or safety concern with our product, please contact us at contact@killfunguslabs.com so that we can respond and record it. If your reaction is serious, seek medical attention first.

19. BUYERS OUTSIDE THE UNITED STATES

Our product and this page are written for the United States market. Cosmetic regulations, ingredient rules and labeling requirements differ from one country to another. If you are ordering from outside the United States, it is your responsibility to check that the product complies with the rules applicable where you live.

20. CHANGES TO THIS PAGE

We may update this page as our product, our formulation or applicable requirements evolve. The version published at the time of your visit is the one that applies. Always read the label and instructions of the product you actually receive, which prevail over any information published here.

21. YOUR ACKNOWLEDGEMENT

By continuing, you acknowledge that:

you have read and understood this page in full
you understand that this product is a cosmetic and not a medical treatment
you understand that no specific result is promised or guaranteed
you use it voluntarily and at your own risk
you are responsible for determining whether it is appropriate for you, with the advice of a healthcare professional if needed
you will not use it as a replacement for medical care or for a treatment prescribed to you

Last updated: 08/11/2026


Masks damaged nails from day one?
One application works deep for 72H and prevents reinfection?
Verified technology, formulated to reach the fungus at the root?
Made with official OTC antifungal actives recognized by the FDA?
Clinically proven, created and recommended by podiatrists?

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