



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
Immediate Relief Begins
Cooling botanicals stop burning and itching within hours. Inflammation reduces.
Visible Skin Clearing
Red angry skin returns to normal. Flaking stops. Healthy tissue emerges.
Deep Fungus Elimination
Reaches deep layers beneath thick calluses. Fungal colonies in crevices and cracks are eliminated.
Protected From Return
Healthy skin fully restored. Natural defenses rebuilt. Your feet stay clear long-term.
Frequently asked questions
How fast will the itching and burning ease?
How fast will the itching and burning ease?
Many users report relief from itching/burning within 24–72 hours, though skin healing takes longer.
Will the bad odor go away?
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.
Why does it keep coming back even after treatment?
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.
I've tried everything for years, why would this work?
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.
Is this safe if Lamisil gave me liver problems?
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.
Will this work on thick, cracked heel skin?
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.
How long should I plan to use it?
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.
How does the 30-day guarantee work?
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


Michael R. - Phoenix, AZ
Tried Everything for3 Years - This Actually Worked
I spent hundreds on Lotrimin, Tinactin, even prescription Lamisil. Nothing worked for more than a week. I also tried apple cider vinegar, tea tree oil but all that did is irritate my skin even more. This serum soothed the intense burning itch within the first day. My athlete's foot was almost completely gone in just 13 days. It's been 4 months and it hasn't returned.


Sarah K. - Denver, CO
Finally Found Something That Works
After years of embarrassing nail fungus, I was skeptical about trying another product. But this formula actually delivered results I could see within weeks. My nails are finally clear and healthy again.


David L. - Miami, FL
Amazing Results in Just 2 Weeks
I was amazed at how quickly this worked. The itching stopped almost immediately, and within two weeks the infection was completely gone. I wish I had found this product years ago!
Recommended by Podiatrists

Dr. Michael Harrison, DPM
Board-Certified Podiatrist
14 Years of Practice