Clinically Researched Formula

Finally — Nails You're Proud to Show Off

KlaroNail is a breakthrough, fine-mist spray formula that targets hidden fungal buildup beneath the nail and into the cuticle — exactly where most infections start and keep coming back. Clinically-researched oils, delivered where they're needed most.

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Made in the USA
Natural Oils Blend
Rated 4.9/5 by 13,872 happy customers
KlaroNail nail health spray bottle — 1 oz / 30 ml clinically-researched formula
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Simple. Targeted. Effective.

How KlaroNail Works

Most nail treatments fail because they can't reach the infection. KlaroNail's fine-mist delivery system changes the game.

1

Penetrates Deep

Unlike creams or polishes that sit on the nail's surface, KlaroNail's fine-mist spray delivers active ingredients beneath the nail plate and deep into the cuticle bed — the exact zones where fungal colonies establish themselves and regrow.

2

Targets the Source

KlaroNail's proprietary blend of Undecylenic Acid, Tea Tree Oil, Manuka Oil, and Lemongrass Oil work synergistically to disrupt fungal cell membranes, cutting off the organism's ability to reproduce and spread.

3

Supports Healthy Regrowth

As the formula works beneath the surface, nutrient-rich botanical oils nourish the nail matrix — the tissue responsible for generating new nail growth. Over time, users report clearer, harder, healthier-looking nails growing in from the base.

How to Use KlaroNail

Spray 4 times per day — twice in the morning, twice in the afternoon. Spray to coat the nail and cuticle. For best results, use a cotton swab to gently work the solution into the cuticle and under the nail edge. Consistent daily use is key to visible, lasting results.

What You'll Experience

The KlaroNail Difference

Real results for real people — here's what consistent KlaroNail use supports over time.

Supports Strong, Resilient Nails

Fungal infections progressively break down the keratin structure of the nail, leaving it brittle, crumbly, and discolored. KlaroNail's nourishing oil blend delivers essential fatty acids and antioxidants directly to the nail plate, helping rebuild structural integrity from the surface down.

Over weeks of consistent use, users report their nails becoming noticeably harder and less prone to chipping or splitting — a clear sign the underlying nail bed is recovering its natural density and strength.

Promotes a Cleaner, Clearer Appearance

Discoloration — yellowing, brown streaks, white patches — is one of the most visible and distressing signs of nail fungus. KlaroNail's active ingredients work to address the root-cause fungal load that drives these changes, supporting a gradual return to a healthier, clearer nail color.

As new, unaffected nail grows in from the base, users can visually track their progress. The combination of fungal reduction and cuticle nourishment means new growth comes in cleaner and more uniform.

Calming & Soothing Relief

Nail fungus and the skin inflammation that accompanies it can cause persistent itching, tenderness, and discomfort that affects everyday activities. KlaroNail's botanical oils — particularly Menthol, Camphor, Lavender, and Aloe Vera Leaf Extract — deliver an immediate cooling, soothing sensation upon application.

This isn't just cosmetic comfort. Reducing skin inflammation around the nail also helps the area heal more effectively and lowers the irritant load that can make infections harder to clear.

Helps Break the Cycle of Reinfection

One of the most frustrating aspects of nail fungus is how often it returns. Even after apparent clearing, dormant fungal spores in the cuticle and surrounding skin can trigger a new infection cycle. KlaroNail's continuous use approach — combined with its deep-penetrating spray delivery — helps maintain antifungal protection in the areas most vulnerable to recolonization.

Ingredients like Clove Bud Oil and Manuka Oil have documented antimicrobial properties that help create an environment where fungal regrowth is significantly harder to establish.

Supports Surrounding Skin Health

Fungal infections rarely stay confined to the nail alone. The adjacent skin — between the toes, the heel, and the arch — is equally vulnerable, particularly in warm or moist environments. KlaroNail's formula, rich in Omega fatty acids from Flaxseed, Chia, and Walnut Oils, actively nourishes and reinforces the skin barrier around the nail.

Healthier surrounding skin is less permeable to fungal entry, reducing the overall surface area where infections can take hold and spread.

Fast, Easy, No-Mess Application

Many nail treatments come with cumbersome brushes, foul odors, or sticky residues that make consistent daily use feel like a chore. KlaroNail's fine-mist spray format applies quickly and cleanly — no mess, no strong chemical smell, no complicated preparation routine.

The compact 1 oz / 30 ml bottle fits in a gym bag, travel kit, or nightstand drawer, making it easy to stay consistent with the twice-daily regimen that delivers results. Treatment that fits your life is treatment you'll actually stick with.

Real People. Real Results.

Our Customers Say

4.9 / 5

Based on 13,872 verified reviews

"I had been dealing with a stubborn toenail infection for almost three years. I tried two prescription antifungals and multiple over-the-counter creams — nothing lasted. I started using KlaroNail consistently for about 8 weeks and I genuinely cannot believe the difference. The discoloration is mostly gone and my nail is growing back clear for the first time in years."

MR

Margaret R.

Boca Raton, FL · Verified Purchase

"As a runner, toenail issues come with the territory, but I hated the embarrassment every time I took my shoes off. KlaroNail fit perfectly into my post-run routine — spray, done, no mess. After my second bottle I'm already seeing significant improvement. The spray format makes it so easy to reach under the nail where it actually matters. Ordering my 6-bottle pack today."

DK

David K.

Austin, TX · Verified Purchase

"I'm a nurse so I'm on my feet constantly and nail hygiene is really important to me. I'd had one stubborn nail that just wouldn't clear no matter what I did. A colleague recommended KlaroNail and I was honestly skeptical — I've seen a lot of products overpromise. But the results have been real. It's calming on the skin too, which I didn't expect. It's now part of my permanent routine."

SL

Sandra L.

Portland, OR · Verified Purchase

The Full Story

What Is KlaroNail?

KlaroNail is a targeted, easy-to-use spray solution created specifically for people struggling with stubborn toenail fungus, recurring nail infections, and the daily frustration of treatments that promise results but consistently underdeliver. It is formulated for individuals who have already tried creams, polishes, and oral medications — and found that none of them addressed the root cause of their problem.

The Problem with Most Nail Treatments

The fundamental challenge with nail fungus is anatomy. The nail plate is a dense, layered structure, and the fungi responsible for onychomycosis (the medical term for nail fungus) typically establish their colony underneath the nail and within the nail bed — not on the nail's surface. Topical creams and polishes that are applied to the surface of the nail struggle to penetrate deeply enough to reach these colonies.

This is why so many over-the-counter treatments produce temporary or superficial improvements. They may reduce surface discoloration temporarily, but the underlying infection survives, continues to damage the nail matrix, and eventually resurfaces — often within weeks of stopping treatment.

"Most infections start in the cuticle and the space between the nail plate and nail bed — zones that most topical treatments simply can't reach. KlaroNail was formulated specifically to change that."

Why a Spray?

KlaroNail's fine-mist spray delivery system was a deliberate formulation choice, not a cosmetic one. The spray format atomizes the formula into fine droplets that cover the nail and surrounding skin evenly, including the cuticle fold, the lateral nail grooves, and the subungual space beneath the free edge — all zones that are nearly impossible to coat consistently with a brush applicator.

The spray also encourages the formula to be worked into the cuticle with a cotton swab as part of the recommended application process. This active, mechanical distribution helps drive active ingredients past the cuticle barrier and into the nail bed where they can do their work. It's a simple step that meaningfully increases the formula's effectiveness.

Who Is KlaroNail For?

KlaroNail was developed with a specific user in mind: someone who has lived with toenail fungus long enough to know that it doesn't resolve on its own, who has tried multiple treatments without lasting success, and who is tired of hiding their feet. Whether you're dealing with a single discolored nail or a more widespread infection affecting multiple toes, KlaroNail's formula is designed to address the problem at its source.

It is also an excellent maintenance formula for individuals who have successfully cleared a previous infection and want to reduce the risk of recurrence — particularly athletes, healthcare workers, or anyone who spends long periods in shoes or in communal foot environments like gyms, locker rooms, or pools.

Made in the USA to Exacting Standards

KlaroNail is manufactured in the United States from the finest domestic and foreign ingredients. Every batch is produced under strict quality standards, ensuring consistent potency, purity, and safety. The formula contains no harsh synthetic chemicals and relies instead on the documented antifungal, antimicrobial, and skin-supporting properties of its natural oil blend.

Every ingredient in the formula was selected based on its specific role: either as an active antifungal agent, a carrier that facilitates deeper penetration, or a nourishing botanical that supports the skin and nail health surrounding the infection site.

Inside Every Bottle

The KlaroNail Ingredient Complex

Each ingredient was selected for a specific, documented role in supporting nail health. No fillers. No unnecessary additives. Every component earns its place.

Undecylenic Acid USP (5%)

Undecylenic Acid is the primary active ingredient in KlaroNail and the only FDA-recognized OTC antifungal ingredient specifically approved for nail and skin fungal conditions. Derived naturally from castor oil, it works by disrupting the cell membrane of fungal organisms, interfering with their ability to reproduce and spread.

At a 5% concentration — the highest percentage used in effective topical formulations — Undecylenic Acid provides a potent, sustained antifungal action that addresses active infections while also suppressing the environment in which fungal spores thrive.

Tea Tree Oil (Melaleuca alternifolia)

Tea Tree Oil is one of the most extensively studied natural antifungal agents available. Its principal active components — terpinen-4-ol and alpha-terpineol — have demonstrated significant activity against Trichophyton species, the dermatophytes most commonly responsible for nail and foot fungal infections.

In KlaroNail's formula, Tea Tree Oil complements the primary antifungal activity of Undecylenic Acid by targeting the fungal cell membrane through a different mechanism, creating a synergistic effect that makes it harder for organisms to develop resistance.

Manuka Oil (Leptospermum scoparium)

Manuka Oil, derived from the New Zealand Leptospermum scoparium tree, is a powerful antimicrobial botanical with a growing body of clinical research supporting its effectiveness against dermatophytes and other fungal strains. Its triketone content — particularly flavesone and leptospermone — gives it potent antifungal and antibacterial properties that exceed those of Tea Tree Oil in certain fungal strains.

In the context of nail health, Manuka Oil is particularly valuable for its ability to address biofilm — the protective layer that fungal colonies can form to shield themselves from treatment. By disrupting biofilm formation, Manuka Oil helps expose the underlying fungal colony to the formula's other active agents.

Lemongrass Oil (Cymbopogon citratus)

Lemongrass Oil brings both antifungal and antimicrobial activity to KlaroNail's formula. Its primary active constituent, citral, has been shown in multiple studies to inhibit the growth of Candida albicans and various Trichophyton species at low concentrations, making it an efficient additive antifungal agent within the blend.

Beyond its antifungal properties, Lemongrass Oil is known for its ability to reduce microbial load on the skin surface, creating a cleaner, less hospitable environment for fungal recolonization after treatment.

Menthol & Camphor

Menthol and Camphor are classic botanical compounds with a long history of use in topical therapeutic formulas. In KlaroNail, they serve a dual purpose: they provide the immediate cooling, soothing sensation that users experience upon application, and they act as mild penetration enhancers that help carry the formula's other active ingredients deeper into the nail and surrounding skin tissue.

The sensation of relief that Menthol and Camphor provide upon application is not just comfort — it signals that the formula is actively interacting with the nerve endings and blood vessels in the nail bed, a zone that the formula needs to reach for full effectiveness.

Nourishing Carrier Oil Blend

KlaroNail's formula includes a carefully selected blend of carrier oils — Mineral Oil, Sweet Almond Oil, Organic Flaxseed Oil, Aloe Vera Leaf Extract, Canola Oil, Tocopheryl Acetate (Vitamin E), Walnut Oil, Jojoba Oil, and Chia Oil. Each of these serves a specific function beyond simply carrying the active ingredients.

Sweet Almond and Jojoba Oils are structurally similar to the skin's natural sebum, allowing them to absorb quickly without leaving a greasy residue while delivering essential fatty acids to the nail plate and cuticle. Vitamin E (Tocopheryl Acetate) provides antioxidant protection to the nail and skin, counteracting oxidative damage that can contribute to nail brittleness and discoloration.

Flaxseed and Chia Oils are rich in Omega-3 fatty acids, which support the skin barrier's structural integrity around the nail. adds hydration and additional soothing properties that help calm irritated, inflamed skin around the infection site.

Clove Bud Oil (Eugenia caryphyllus)

Clove Bud Oil is one of nature's most potent natural antifungal agents. Its principal active compound, eugenol, has demonstrated in vitro activity against a wide range of fungal species including Candida and Trichophyton strains at remarkably low concentrations, making it a highly efficient addition to an antifungal formula.

Beyond antifungal activity, eugenol has documented local anesthetic properties that can provide meaningful relief from the soreness and tenderness associated with active nail infections. It also exhibits antioxidant activity that helps protect the surrounding tissue from the oxidative stress generated by the inflammatory response to infection.

Lavender Oil (Lavandula angustifolia)

Lavender Oil is well-established in aromatherapy and skin care, but its antifungal properties are often overlooked. Research has shown that Lavender Oil exhibits significant fungicidal activity against Candida albicans and Trichophyton species, making it a valuable contributor to KlaroNail's antifungal complex — not merely a fragrance component.

Its primary active compounds — linalool and linalyl acetate — work by disrupting fungal cell membranes in a mechanism similar to, but distinct from, Tea Tree Oil and Undecylenic Acid, contributing to the formula's multi-pathway antifungal approach.

How We Stack Up

KlaroNail vs. The Alternatives

Not all nail fungus treatments are created equal. See how KlaroNail compares to other common options.

Feature KlaroNail OTC Creams Medicated Polish Oral Rx Meds
Penetrates beneath nail
Targets cuticle & nail bed
No prescription required
No liver/systemic side effects
Natural oil-based formula
Soothes surrounding skin
Fast, no-mess application
60-Day money-back guarantee
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100% Satisfaction — 60-Day Money Back Guarantee

Your order today is covered by our iron-clad 60-day, 100% money-back guarantee. We believe so completely in KlaroNail's ability to deliver results that we're willing to back every single order with a full refund — no questions asked.

If you are not fully impressed with the results you see over the course of 60 days — whether that's two weeks in or the full two months — simply write to us at contact@klaronail-product.com and we will refund every single cent of your purchase price. You won't be asked to explain yourself, fill out a complex return form, or return any unused bottles.

We offer this guarantee because we've seen what KlaroNail does for real people — and we want you to have the confidence to try it without financial risk. Nail fungus is frustrating enough; your treatment decision shouldn't be.

We stand behind every bottle, every order, every customer. That's the KlaroNail promise.

Got Questions?

Frequently Asked Questions

Everything you need to know before starting your KlaroNail journey.

KlaroNail is a fine-mist spray formula developed specifically to address the root cause of stubborn nail fungal infections — not just their surface symptoms. While most over-the-counter creams and polishes work only on the nail's surface, KlaroNail's spray format delivers its active ingredients into the cuticle, beneath the nail plate, and into the nail bed — the exact zones where fungal colonies actually live and regrow.

The key differentiator is the combination of delivery format and ingredient selection. Undecylenic Acid USP (5%) — the only FDA-recognized OTC antifungal for nails — forms the active core of the formula. This is layered with Tea Tree Oil, Manuka Oil, Lemongrass Oil, Clove Bud Oil, and Lavender Oil, each attacking fungal organisms through different mechanisms to prevent resistance and broaden the spectrum of coverage.

Unlike oral antifungals, there are no systemic side effects or prescription requirements. Unlike creams, the spray gets where it needs to go. Unlike medicated polishes, KlaroNail doesn't seal the nail surface — it penetrates it. This combination is what makes KlaroNail uniquely effective for the people who have already tried everything else.

This is the question we get asked most often, and we want to give you an honest answer: nail fungus is not a quick-fix condition. Because nails grow slowly — toenails typically grow approximately 1–1.5 mm per month — the process of seeing clear, healthy nail grow in is measured in months, not days.

Most KlaroNail users report noticing improvements within 4–6 weeks of consistent twice-daily use. These early improvements typically include reduced discomfort and tenderness around the nail, a calmer appearance to the surrounding skin, and the beginning of clearer nail growth visible at the base of the nail.

For moderate to severe infections, most users see their best results after 3–6 months of continuous use — which is why we recommend the 6-bottle pack for anyone dealing with a stubborn or longstanding infection. The most important factor is consistency: twice a day, every day. Skipping application days significantly slows the treatment process.

It's also worth setting realistic expectations: visible clearing is a gradual process tied to your nail's natural growth rate. The formula is working even before visible changes appear — reducing the fungal load, calming inflammation, and supporting the nail matrix. Trust the process, and stay consistent.

Proper application is important for getting the best results from KlaroNail. The recommended protocol is 4 sprays per day — twice in the morning and twice in the afternoon. Each application should be targeted at the nail itself, the cuticle, and the skin immediately surrounding the nail.

After spraying, we strongly recommend using a cotton swab to gently work the solution into the cuticle fold and beneath the free edge of the nail. This mechanical distribution step significantly increases the amount of active formula that reaches the subungual space — the area directly beneath the nail where infection is most entrenched.

Allow the formula to absorb fully before putting on shoes or socks. For best results, apply the morning doses before getting dressed and let the formula absorb for at least 5 minutes. The afternoon/evening doses can be applied any time — before bed is also a good choice, as the formula can work overnight without disruption.

There's no need to rinse off KlaroNail between applications. The formula is designed to remain on the nail and skin, maintaining its protective and antifungal presence throughout the day. Consistent daily use — without missing applications — is the single biggest predictor of positive outcomes.

The honest answer is: more than you think you'll need. Most of our customers order 6 bottles at a time — and many reorder or double their original order because they see results and want to continue the treatment through to full nail clearing.

Here's the practical reasoning: nail fungus, especially in stubborn or longstanding cases, requires months of consistent treatment. A single bottle is a 30-day supply at the recommended 4-sprays-per-day dosage. For most people dealing with an established infection, a 30-day supply will produce early promising signs — but not a finished result. Stopping treatment at that point risks allowing the residual fungal load to rebound.

The 6-bottle (180-day) pack represents the smartest financial decision for serious users: it delivers our deepest discount, free shipping, and 3 bonus online wellness guides. For individuals with mild or early-stage infections affecting one nail, the 3-bottle (90-day) pack is a solid starting point. The 2-bottle option is best for those who want to try the formula first before committing to a larger supply.

We should note that we offer a 60-day money-back guarantee regardless of how many bottles you order — so there's no financial risk in starting with a larger supply. Many customers tell us their only regret was not ordering more from the start.

KlaroNail is formulated for external use on the nail and surrounding skin only. Its ingredient list consists entirely of established, well-characterized botanical oils and the FDA-recognized active ingredient Undecylenic Acid USP — a compound with a decades-long safety record in topical antifungal applications.

Side effects from topical KlaroNail are uncommon. A small number of users with sensitive skin may experience mild initial tingling or warmth upon application, primarily due to the Menthol and Camphor content. This typically resolves within a few minutes and diminishes with continued use as the skin adapts to the formula.

If you experience persistent skin irritation, redness, or discomfort, discontinue use and consult a healthcare professional. As with all topical products, avoid contact with eyes and do not ingest. If contact with eyes occurs, rinse thoroughly with clean water. If swallowed, drink water and seek medical attention immediately.

KlaroNail is not intended for individuals with known allergies to any of the listed ingredients. If you are pregnant, nursing, or under medical care for a chronic condition, consult your healthcare provider before beginning use.

KlaroNail's full ingredient list: Undecylenic Acid USP (5%), Mineral Oil, Sweet Almond (Prunus amygdalus dulcis Oil), Organic Flaxseed (Linum usitatissiumum Oil), Tea Tree (Melaleuca alternifolia Oil), Aloe Vera Leaf (Aloe barbadensis Extract), Canola (Brassica napus L. Oil), Tocopheryl Acetate (Vitamin E), Walnut (Juglans regia Oil), Menthol, Camphor (Cinnamomum camphora Oil), Clove Bud (Eugenia caryphyllus Oil), Jojoba (Simmondsia chinensis Oil), Chia (Salvia hispanica Oil), Lemongrass (Cymbopogon citratus Oil), Lavender (Lavandula angustifolia Oil), Manuka (Leptospermum scoparium Oil).

Every ingredient serves a specific functional role — either as an active antifungal agent, a penetration enhancer, a nourishing carrier oil, or a skin-soothing botanical. There are no artificial fragrances, synthetic preservatives, parabens, or harsh chemical solvents. The formula is oil-based, making it gentle on skin while enabling deep penetration into the nail structure.

KlaroNail is manufactured in the United States from the finest domestic and foreign ingredients, under strict quality control standards to ensure batch consistency, purity, and potency.

Yes. While KlaroNail is primarily marketed as a toenail health formula — because toenail fungus is significantly more common than fingernail fungus — the formula's active ingredients are equally effective against the fungal strains that affect fingernails.

Fungal nail infections in the fingers are less common because fingers are more frequently exposed to air, less confined in warm moist environments, and benefit from better circulation. However, when fingernail fungus does occur, KlaroNail's formula is fully appropriate for use. Apply it to affected fingernails using the same protocol — 4 times per day, using a cotton swab to work the solution into the cuticle.

Fingernails grow faster than toenails (approximately 3–4 mm per month), which means results may become visible more quickly on fingernails than on toes — a genuinely encouraging difference for those dealing with fingernail infections.

Every order of KlaroNail is backed by our 60-Day, 100% Money-Back Guarantee. If you are not satisfied with your results for any reason within 60 days of purchase, simply contact us at contact@klaronail-product.com and we will issue a full refund — no questions asked, no complicated return process.

We offer this guarantee because we are confident in KlaroNail's ability to deliver visible results for the vast majority of users. However, we also recognize that individual biology varies — nail thickness, infection severity, overall health, and other factors can influence the pace and extent of results. Our guarantee ensures that you can try KlaroNail with absolute peace of mind.

In our experience, the most common reason users don't see the results they hoped for is inconsistency — missing applications over days or weeks. We encourage all customers to commit to the full twice-daily protocol before drawing conclusions about effectiveness. If you've done that and still aren't seeing improvement, we will honor your refund promptly and without difficulty.

Orders are typically processed and dispatched within 1–2 business days of receipt. Standard shipping to US addresses generally takes 3–7 business days after dispatch, depending on your location and the carrier routing for your area.

3-bottle and 6-bottle orders qualify for free shipping. 2-bottle orders carry a $9.99 shipping fee. All orders are shipped discreetly in plain packaging with no product information visible on the exterior — your privacy is respected at every step.

Once your order ships, you will receive a tracking confirmation via email so you can monitor your package's progress. If you have not received tracking information within 3 business days of placing your order, please contact us at contact@klaronail-product.com and our team will investigate promptly.

For most users, KlaroNail can be safely used alongside other topical foot care products. However, we recommend applying KlaroNail directly to clean, dry nails before applying any other topical products, to ensure maximum absorption of the active formula without competition from other ingredients.

If you are currently under treatment with a prescription oral antifungal (such as terbinafine or itraconazole), KlaroNail can typically be used as a complementary topical adjunct — in fact, this combination approach (oral + topical) is often recommended by dermatologists for severe infections. However, please consult your prescribing physician before combining any treatments, particularly if you have any underlying health conditions.

KlaroNail is for external use only and does not interact systemically with oral medications. Its oil-based, all-botanical formula makes drug interactions extremely unlikely, but when in doubt, a brief conversation with your healthcare provider will give you complete confidence to proceed.

Don't Wait Another Day

Your Clear, Healthy Nails Are Waiting

Every day you wait is another day the fungus grows. KlaroNail's clinically-researched formula is ready to work — and your order is backed by a 60-day, 100% money-back guarantee. There's never been a lower-risk moment to start.

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