Fungal nail treatment without the mess or miracle promises.
A precise 4ML applicator pen designed for targeted nail care at home. Easy to apply, portable, and made for consistent daily use.
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What it is: A high-strength topical antifungal in an oil-based carrier, built to move through the nail plate. Water-based treatments tend to sit on the surface; this formula is made to travel into keratin instead.
Active ingredient: 25% undecylenic acid — the strongest over-the-counter level allowed under the FDA monograph, with no prescription required.
Delivery system: Tocopheryl acetate (vitamin E) in a lipid base. Keratin is naturally oil-friendly, so this vehicle helps the actives pass through the plate rather than drying out on contact.
Biofilm disruption: Propolis extract is included to break down the protective film fungi form. Clinical data shows it can reduce mature biofilm cells by about 90%, leaving the colony open to the antifungal.
Applicator: A pen with a one-way mechanical valve, so spores cannot travel back into the reservoir between uses.
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Wash the area and dry it completely.
Twist the pen base to release a measured dose. The one-way valve keeps spores from moving back into the bottle.
Brush the liquid onto the nail plate, around the cuticle, and under the free edge.
Wait 60 seconds so the oil-based formula can soak into the nail before putting on socks or shoes.
Apply twice a day — morning and night — without skipping days.
Do not stop just because the nail starts looking clearer. The damaged plate has to grow out fully before the routine is complete. Cutting the protocol short is the usual reason the infection looks like it has come back.
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Active ingredient: 25% undecylenic acid (maximum OTC strength).
Penetration and biofilm support: Tocopheryl acetate (vitamin E lipid carrier), propolis extract (helps break down biofilm), tea tree oil, clove bud oil (eugenol), oregano oil (extra antifungal support), aloe vera (protects the skin around the nail), jojoba (carrier oil that helps the formula move in).
No alcohol that evaporates before it can work. No water base that keratin pushes away on contact. No ingredients that have to be processed by the liver.
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Shipping: Orders typically go out within 24–48 hours. Delivery usually takes 3–10 days, depending on your location.
Video reviews
DERMAVIA+ may be a good fit if...
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01
“I've already tried other fungal nail products.”
You're tired of complicated routines and products that eventually end up unused.
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02
“I don't want something I have to swallow.”
You're specifically looking for a topical product that is applied directly to the nail.
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03
“I keep forgetting to use treatments.”
You want something quick enough to fit into your normal daily routine.
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04
“I'm embarrassed about how my nail looks.”
You want to stop covering it up and start dealing with it consistently.
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05
“It improved before, then came back.”
You're thinking beyond a quick fix and want to take nail and foot care more seriously.
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06
“I just want something straightforward.”
No complicated process. Clean the nail, apply, let it dry and continue your day.
Your nail needs time to grow.
Your routine needs to last.
This is one of the most important things to understand about fungal nail care.
The affected part of your nail does not simply vanish after application.
Instead, progress happens as new nail grows and the older affected nail gradually grows out.
Take a starting photo
Photograph the nail before beginning your routine.
Toenails and fingernails
Designed for targeted nail care.
Nothing to swallow
Applied directly to the nail.
Look for new growth, not overnight perfection.
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01
Starting point
Take a clear photo of your nail before the first application.
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Early routine
Focus on consistency rather than checking for dramatic daily changes.
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03
As the nail grows
Watch the base of the nail for healthier-looking new growth.
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Longer term
Continue caring for the nail while the affected part gradually grows out.
Important: individual results and nail growth rates vary.
How to use
Clean and dry
Clean and dry the nail before applying the product.
Apply with the pen
Use the applicator to apply the product directly to the nail.
Let it absorb
Allow the product to dry before putting on socks or shoes. Do not rinse off.
Repeat consistently
Use consistently as directed on the product instructions.
A fungal nail routine can fail before the product ever gets a fair chance.
A fungal nail routine can fail before the product ever gets a fair chance.
Not because someone doesn't care.
Because applying something day after day without immediate visual feedback is difficult.
Buy treatment
Use it consistently at first
Don't see an overnight transformation
Don't see an overnight transformation
Start forgetting applications
Stop altogether
Buy something different later
What it can do is make the application part simpler.
Less friction in your daily routine.
| Feature | DERMAVIA+ Pen | Traditional Bottle / Cream |
|---|---|---|
| Direct nail application | Yes | Depends on format |
| 2 pens | One nail | Better for a more consistent routine |
| Brush-tip applicator | Yes | Not always |
| Open bottle required | No | Often |
| Compact travel format | Yes | Depends |
| Compact travel format | Yes | Depends |
You've heard "trust the process" before. This time, check it yourself.
Three things skeptics ask us most. Here's the honest answer to each — no dramatic before-and-afters, just what actually happens.
| What you'd expect | What actually happens |
|---|---|
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Don't forget the things your feet touch every day.
If you've dealt with fungal nail problems before, you may already know how frustrating it is when they return. Good foot care is part of the routine — not an extra step.
Keep feet clean and dry.
Change socks regularly.
Let footwear dry out between wears.
Keep nail tools clean.
Avoid sharing clippers or files.
Pay attention to early nail changes.
Follow the product instructions consistently.
Product information
| Product type | Nail treatment pen |
| Format | 4ML pen applicator |
| Use area | Toenails and fingernails |
| Application | Targeted brush-tip application |
| Routine | Designed for consistent daily use as directed |
Frequently Asked Questions
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Apply the pen daily to clean, dry nails. Consistent use is important, as healthy nail growth takes time.
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The precision brush tip allows targeted application directly onto the affected area without the mess often associated with creams. It is quick, convenient, and easy to incorporate into your daily routine.
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Absolutely! The treatment pen is suitable for both toenails and fingernails and can be applied wherever nail concerns are present.
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Yes. Filing the affected nail once a week can help improve penetration and support the effectiveness of the treatment.
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Yes. Many customers continue using the pen as part of their nail care routine to help maintain healthy-looking nails and support prevention.
How many
pens do I need?
Move the slider to see which pack is recommended for your routine.
Start with the routine pack
A good starting point for a consistent routine on one nail.
Already trusted by Amazon shoppers
You don't need another miracle promise.
You need something simple enough to keep using while your nail has time to grow.
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