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 Excellent 4.8 | 1.420+ verified reviews

Powerful topical serum for stubborn foot fungus

Powerful topical serum for stubborn foot fungus

25% Undecylenic Acid + 12 botanicals that targets fungus, soothes itching and helps to prevent return.

Rapid Relief from Itch, Burn & Odor

Breaks through the thick, dead skin barrier where fungus hides

Soothing 100% Natural Formula For Sensitive Skin

File included for improved serum penetration

Clinically tested

Regular price $40.00
Regular price $40.00 Sale price $55.00
SAVE 27% Sold out
  • local_shipping Worldwide shipping
  • undo 30-day guarantee
  • health_and_safety Podiatrist recommended
Powerful topical serum for stubborn foot fungus

Powerful topical serum for stubborn foot fungus

Regular price $40.00
Regular price $40.00 Sale price $55.00
SAVE 27% Sold out
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How does it treat foot fungus?

Multi-Attack Formula:

  • 25% Undecylenic Acid - 72% cure rate, 25x stronger than standard treatments
  • 12 Synergistic Botanicals - Prevent resistance, target stubborn infections
  • Enhanced Penetration - 1000% deeper absorption with aloe vera + jojoba oil
  • Professional Nail File - 76% cure rate with debridement vs 0% without

Unlike single-ingredient treatments, our multi-modal approach stops resistance development and reaches deep infections.

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After treating thousands of cases, this is the only OTC formula strong enough to work

Mark J. - Podiatrist
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Is this safe to use?

Maximum Strength, Minimum Risk:

  • No liver toxicity - Unlike oral medications (Lamisil) with 0.44% liver damage risk
  • Naturally derived - All ingredients clinically tested for topical safety
  • External only - No systemic side effects or drug interactions
  • Long-term safe - No treatment duration limits

Prescription-strength results without prescription dangers.

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How to use?

2-Step System:

  1. Prepare: Use included nail file to remove dead skin (increases penetration 50%)
  2. Apply: Thin layer twice daily to affected area + surrounding skin

Timeline: Continue 2-4 weeks after symptoms clear. See results in days, not weeks.

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Ingredients

13 Targeted Ingredients:

  • Undecylenic Acid (25%) - Maximum strength antifungal
  • Tea Tree + Oregano + Clove Oils - Broad-spectrum coverage
  • Aloe + Jojoba - 1000% better penetration
  • Manuka + Propolis - Healing acceleration
  • Lavender + Peppermint - Soothing relief
  • Plus 4 additional botanicals for complete coverage
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Shipping & returns

Worldwide shipping: 5-10 days shipping time with tracking included

30-day guarantee: Not satisfied? We'll make it right - contact us for easy returns and refund processing

View full details

Why Everything Else Has Failed You

The hidden reasons your foot fungus keeps coming back - and why our serum works

Treatment Challenges Our 25% undecyclenic acid serum Home Remedies Drugstore Creams & Sprays Antifungal Powders Prescription Pills
Penetrates Thick Skin ~
Kills Fungus at Source ~ ~
Prevents Reinfection
Safe for Daily Use ~
No Side Effects ~
Fast Results ~ ~

Why our serum works

Healthy feet should be smooth, dry, and odor-free. You should never think twice about taking off your shoes.

But fungus causes your skin to thicken for protection. This thick layer blocks treatments. Remedies can't penetrate, powders only prevent, pills require liver monitoring. The infection hides beneath while everything fails on the surface.

Gently filing the thick, dead skin lets medicine reach where fungus lives. Our undecylenic acid destroys fungal cells and breaks apart biofilms. Those are protective shields that cause reinfection. Clinical studies prove it works where others fail. The 12 botanicals each serve a purpose: tea tree fights fungus, aloe stops itch, vitamin E repairs skin, propolis prevents return. All extensively tested for safety. With the barrier gone and biofilms broken, your feet heal back to normal - smooth, dry, and healthy.

As seen on

Watch Your Feet Transform in Just Weeks

Our 25% formula works progressively to eliminate fungus at every level

1
Days 1-3

Immediate Relief Begins

Cooling botanicals stop burning and itching within hours. Inflammation reduces.

2
Days 4-7

Visible Skin Clearing

Red angry skin returns to normal. Flaking stops. Healthy tissue emerges.

3
Week 2

Deep Fungus Elimination

Reaches deep layers beneath thick calluses. Fungal colonies in crevices and cracks are eliminated.

4
Week 3+

Protected From Return

Healthy skin fully restored. Natural defenses rebuilt. Your feet stay clear long-term.

Frequently asked questions

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How fast will the itching and burning ease?

Many users report relief from itching/burning within 24–72 hours, though skin healing takes longer.

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Will the bad odor go away?

Yes the odor often decreases in the first few days once the infection and surface scale clear, but shoes/socks must also be treated.

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Why does it keep coming back even after treatment?

Thick, dead skin can trap fungus beneath the surface so topicals don’t reach it. File the area first and use a serum formulated to penetrate the skin layers to treat the infection more effectively.

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I've tried everything for years, why would this work?

Many OTC creams only treat the surface; filing first and using a higher-strength topical helps reach deeper fungus, while oral antifungals (e.g., terbinafine) work systemically but can cause side effects including possible liver injury and need medical supervision.

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Is this safe if Lamisil gave me liver problems?

Topical use is local and non-systemic, so it does not require liver monitoring. Consult your doctor if you have a medical history that concerns you.

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Will this work on thick, cracked heel skin?

The serum is designed to work on thickened skin when paired with gentle filing. Severe cracks that bleed or are very deep should be evaluated by a healthcare professional.

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How long should I plan to use it?

Expect symptom relief in days and skin recovery in 1–4 weeks for many users; continue daily until clear and for 2 weeks after improvement.

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How does the 30-day guarantee work?

Yes — 30-day guarantee. Email info@marvony.com within 7 days to enroll; to claim later send order #, a before photo, a bottle photo, and daily dated photos for at least 14 days of use. One refund per household.

Hear from our customers who are now fungus-free

Real customers who tried everything before finding our25% formula

Recommended by Podiatrists

Dr. Michael Harrison, DPM

Dr. Michael Harrison, DPM

Board-Certified Podiatrist

14 Years of Practice

"
In over a decade of podiatric practice, I've seen the frustration of recurrent foot fungus. Most patients come to me after multiple failed treatments. This 25% undecylenic acid formula offers the potency of prescription medications without requiring liver function monitoring. The critical difference is the skin preparation system. The provided nail file removes the thickened, dead skin barrier that blocks medication absorption. Without this step, even the best antifungals remain on the surface while the infection persists in deeper skin layers. For patients seeking an evidence-based alternative to oral medications, this represents the most complete topical protocol I can recommend.
Verified Medical Professional