FUNGINIX - Extra Strength Toenail Fungus Treatment

Tired of hiding your feet or dealing with recurring toenail fungus? Funginix uses 10% Undecylenic Acid — a clinically trusted OTC antifungal — along with 14 natural anti-fungal agents to penetrate deep and fight the root cause, restoring clear, healthy nails and your confidence.

Trusted by Over 500,000 Customers Since 2008

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Each batch is laboratory tested
Each batch is laboratory tested
Quality is our first priority
Quality is our first priority
FDA-Registered Facility
FDA-Registered Facility
OTC Approved Active Ingredients
OTC Approved Active Ingredients
Highest quality ingredients
Highest quality ingredients
REVIEWS

Customer Reviews

See what verified customers are saying about their experience.

4.8
★★★★★
Based on verified reviews
Write a review
M
Mark Yovish Verified buyer
★★★★★

Twice a day, watch for brush bristles

One month into twice-daily use and showing signs of improvement. Keep the nail trimmed and remain consistent.

Twice a day, watch for brush bristles
B
Brittany G.P. Verified buyer
★★★★★

Nail injury turned fungal infection is 95% gone

After staying consistent with the routine, the nail looks significantly healthier as it grows forward.

Nail injury turned fungal infection is 95% gone
R
Ricardo Rios Verified buyer
★★★☆☆

Takes time, be patient

This takes patience and consistent daily use. Keeping the affected nail short also helped my routine.

Takes time, be patient
Customer result
M
Michelle Verified buyer
★★★★★

This takes time, it is not magic

It takes time and regular use. Clean and dry your feet first, then apply it twice a day.

This takes time, it is not magic
s
smith Verified buyer
★★★★★

perfect healing

It takes time and regular use. Clean and dry your feet first, then apply it twice a day.

perfect healing
TREATMENT TIMELINE

How Funginix Works Over Time

Funginix is applied twice daily to the cuticle and skin around each of the infected nails and should be given five minutes to absorb.

Week 1–2

Week 1–2

Begin twice-daily application. Skin around the nail starts tofeel calmer and less irritated.

Week 4–6

Week 4–6

New, healthier nail growth begins at the base. Discolorationstarts to recede from the cuticle.

Week 10–12

Week 10–12

Significant visible improvement as clear nail grows forward.Continue use for full prevention benefit.

INGREDIENTS

Proven Active PLUS Natural Elements

Our toe fungus treatment for toenails combines a proven OTC active ingredient (Undecylenic Acid) + 14 botanicals that support fighting fungal infections with the power of nature.

Proven Antifungal Support

These ingredients soothe irritation, nourish skin, and support a healthy, fungus-resistant nail environment.

Proven OTC antifungal active

Targets fungal concerns

Supports clearer nails.

Healthier looking nails

FUNGINIX - Extra Strength Toenail Fungus Treatment

Botanical Support

Tea Tree
Tea Tree
Aloe
Aloe
Clove
Clove
Lavender
Lavender
Vitamin E
Vitamin E
Jasmine
Jasmine
How It Works.
Process

How It Works.

A targeted antifungal formula, precision application, and consistent daily use work together to support clearer, healthier-looking nails.

Targets Fungus Deep At The Root

Targets Fungus Deep At The Root

This formula uses 10% Undecylenic Acid, a clinically trusted antifungal, to penetrate deep and fight the root cause, restoring clarity, comfort, and confidence.

Precision Application, Clean Finish

Precision Application, Clean Finish

Applies smoothly around the edge of each nail for controlled, mess-free coverage. Designed for ease and elegance, keeps skin feeling clean, fresh, and well-cared for.

Proudly Made In The USA

Proudly Made In The USA

Formulated and manufactured in a GMP-certified facility under strict quality control, because what you put on your skin should meet the highest standards.

Directions

Quick and Easy Directions For Best Results:

Apply twice daily to clean, dry skin and nails. Use the built-in brush to apply a thin, even layer around the affected nail, morning and night. For best results, maintain proper hygiene.

Funginix is applied twice daily to the cuticle and skin around each of the infected nails and should be given five minutes to absorb.

Directions
FUNGINIX - Extra Strength Toenail Fungus Treatment
Information

Product Info

Everything you need to know about how Funginix targets toenail fungus while supporting healthier-looking nails and surrounding skin.

Targets fungus deep at the root

Targets fungus deep at the root

Toenail fungus lives beneath the nail bed, which is why surface treatments often fail. Funginix's 10% Undecylenic Acid formula is specifically designed to reach the source of the infection — the nail matrix — not just treat the surface. Undecylenic acid is an FDA-recognized OTC antifungal active with decades of documented clinical use, making it one of the most effective non-prescription options available.

Botanical firepower for nails

Botanical firepower for nails

Funginix combines 15 active and botanical ingredients chosen to fight fungus while nourishing the nail and surrounding skin. Tea tree oil and clove provide natural antifungal support, while aloe vera soothes irritation and lavender calms the skin around the nail bed. Vitamin E nourishes and protects the cuticle throughout the treatment process.

Proudly made in USA

Proudly made in USA

Every bottle of Funginix is formulated and manufactured in an FDA-registered, GMP-certified facility in the United States. Each batch undergoes independent laboratory testing to verify potency, purity, and safety before it reaches you. When you choose Funginix, you are choosing a product held to the highest domestic manufacturing standards.

Precision designed for nails

Precision designed for nails

Funginix is applied twice daily to the cuticle and the skin surrounding each affected nail. Allow five minutes for full absorption before putting on socks or shoes. For best results, apply to clean, dry nails and maintain consistent daily use throughout the full treatment course.

Product Info
GUARANTEE

Funginix 90-Day Results Guarantee

We’re so confident that Funginix Toenail Fungus Treatment will deliver the results you’re looking for, we back every purchase with our 90-Day Money-Back Guarantee. Most customers report seeing visible improvement within the first few days of regular use, but we know everyone’s needs are unique. If, after using Funginix as directed, you’re not satisfied with its effectiveness for any reason, you have a full 90 days (3 months) to request a no-hassle refund—simply return the container, even if it’s empty.

We’re proud to say that less than 3% of Funginix customers choose to return their product—a testament to its quality and real results, trusted globally.

Funginix 90-Day Results Guarantee
Funginix 90-Day Results Guarantee
Made in USA

Made in USA

Secure checkout

Secure checkout

Money-back guarantee

Money-back guarantee

GMP Certified

GMP Certified

FAQ

Frequently asked questions

Got more queries? Reach out to our experts for prompt assistance.

Is Funginix safe to use?

Yes. Funginix contains 10% Undecylenic Acid, an FDA-recognized OTC antifungal active ingredient with decades of documented safe use. All botanical ingredients are independently tested for purity and potency. If you are pregnant, nursing, diabetic, or have a health condition affecting circulation, consult your doctor before use.

How do I use Funginix?

Apply Funginix twice daily — morning and night — to clean, dry nails and surrounding skin. Use the built-in precision brush to apply a thin, even layer directly to the affected nail, working it into the cuticle and underneath the nail edge. For best results, maintain consistent daily application and keep nails trimmed short.

How long does it take for Funginix to work?

Results vary by the severity of the infection and individual response. Most users begin to see improvement within 2–4 weeks as healthier nail growth emerges at the base of the nail. Full clearing of a toenail fungus infection typically requires 10–12 weeks of consistent twice-daily application, as the healthy nail must grow out fully. Patience and consistency are key — the existing infected nail must grow out and be replaced.

What is your return policy?

Every Funginix purchase is backed by our 90-day money-back guarantee. If you're not completely satisfied for any reason, contact us within 90 days of purchase for a full refund. No hassle, no questions asked.

How can I contact customer service?

You can reach our customer service team at customerservice@sisquochealthcare.com or through the Contact Us page. We typically respond within 1 business day.

Can Funginix be used on fingernails as well as toenails?

Yes. While Funginix is formulated with toenails in mind, it can be applied
to fingernails affected by fungal infection using the same
twice-daily method. Apply to the cuticle and skin around each
affected nail and allow to absorb fully.

How is Funginix different from Lamisil or other antifungal treatments?

Most OTC topical antifungals use tolnaftate or clotrimazole as their active ingredient. Funginix uses 10% Undecylenic Acid — a fatty acid derived from castor oil with strong antifungal properties and a long safety record. Funginix also combines this with 14 additional botanical ingredients (tea tree, clove, aloe, lavender, Vitamin E) that support nail health and soothe the surrounding skin during treatment. Oral Lamisil (terbinafine) requires a prescription and carries systemic side effects; Funginix is applied topically and formulated for daily OTC use.

What causes toenail fungus to keep coming back?

Recurrence is common because toenail fungus thrives in warm, moist environments. Common re-infection sources include contaminated footwear, shared showers or locker rooms, and damp socks. To reduce recurrence: disinfect old shoes, use moisture-wicking socks, keep feet dry and well-ventilated, and continue Funginix for the full 3-month course even after visible improvement. People with diabetes or poor circulation are at higher risk for recurrence and should take extra preventive care.

How do I know if my nail fungus is getting better?

The most reliable sign of improvement is clear, healthy nail growing in at the base (near the cuticle). Because nails grow slowly — roughly 1.5mm per month for toenails — this process takes time.The existing discolored, thickened nail will still be present and must grow out naturally. Do not stop treatment when you see early improvement; continue through the full course for lasting results.