Rated 4.7 (Based on 1500+ reviews)
Aventa™ Antifungal Pen
The top of your nail is sealed — nothing you apply there gets through. This pen delivers 25% Undecylenic Acid directly where the new nail is made.
Delivers beneath the cuticle — where new growth begins
Stops yellowing, thickening & crumbling at the source
Precision pen application— fast, clean, targeted
Most customers see visible improvement in 2–6 weeks. Healthy new nail continues growing in from there — clearer and stronger with each week.
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5000+ Happy Customers
Lauren J.
I'd tried creams for over a year with no real results. This pen was the first thing that actually made a visible difference. My nails are finally growing in clear again.
Why Most Nail Fungus Treatments Fail
8 out of 10 people who treat nail fungus with conventional creams, ointments, and other conventional solutions see it return within a year.
Your nail plate is a dense keratin barrier. Everything applied on top of it stays on top of it. Creams coat the surface. They don't pass through.
But at the base of the nail, just beneath the cuticle, the surface is soft and unprotected. That's where the nail grows from — and it's where fungus enters, takes hold, and spreads outward as the nail pushes forward. The yellowing, the thickening, the crumbling — all of it started there. No cream you've ever used has come close.
Built to Reach Where the Nail Begins
Creams coat the sealed top of the nail. Nothing gets through. The Aventa™ Antifungal Pen delivers beneath the cuticle — where the nail is soft, unprotected, and new growth starts.
A precision brush tip applies 25% Undecylenic Acid, which is the strongest antifungal concentration available without a prescription. It delivers it directly at the base and edges of the nail. Where fungus enters. Where it takes hold. Where treatment finally reaches.
It's carried in a base of 9 botanical oils that absorb fast, pull the active ingredient deeper, and support healthy nail regrowth from the root out.
No soaking. No mess. Twist, apply, done.
Aventa™ Antifungal Pen
Customer Stories
Sarah,
28
Verified Buyer
I've had fungus on my big toe for almost four years. Tried creams from the pharmacy, tea tree oil, even apple cider vinegar soaks because someone on Facebook swore by it. Nothing lasted. It would look slightly better then go right back to yellow and thick. I've been using this pen for four months now and my nail looks completely different. The yellow is gone, the thickness is gone. If you didn't know what it looked like before you'd never guess there was ever a problem. I still apply every day just to make sure but honestly it's almost hard to believe it's the same nail.
Michael,
35
Verified Buyer
My big toe was the worst. Crumbly, thick, peeling — I couldn't even file it down anymore. The smaller toes were starting to go too which is what scared me into actually doing something about it. I'd been ignoring it for way too long. I've been using the pen every morning for about three and a half months now. Look at the difference. All four toes grew in clean. The big toe took the longest but even that one looks like a normal nail again. I keep staring at my own feet which sounds ridiculous but if you've dealt with this you know the feeling.
Thomas,
30
Verified Buyer
My two big toes had that yellow streaky look for about two years. Not the worst case in the world but bad enough that I noticed it every time I looked down in the shower. I tried a cream from CVS for a few months, nothing changed. Started using the pen in March and by month three both nails had grown out pink and clear. My wife said they look better than they did before the fungus even started. I still use it a couple times a week just out of habit at this point.
David,
42
Verified Buyer
I've spent probably $300 on different products over the years and none of them did what they promised. My wife actually ordered this for me because I'd given up. Five months later and the nail that was the worst one on my foot is almost completely clear. She keeps looking at it and saying she can't believe it's the same toe. The thick crumbly part grew out and what replaced it just looks like a normal healthy nail. I forgot they could look like that.
Megan,
30
Verified Buyer
I haven't worn open shoes in three years because of my toenails. Not sandals, not at the pool, nothing. I started using this in April and almost didn't buy it because I'd been burned so many times. But creams never felt like they were doing anything. This actually feels like it's getting into the nail. It's July now and I just booked my first pedicure since 2023. My nails aren't perfect yet but they're close enough that I don't need to hide them anymore. That alone was worth it.
FAQ
How long does one pen last?
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It depends on how many nails you're treating. For 1–3 nails, one pen typically lasts about a month. If you're treating more nails or both feet, expect closer to 2 weeks per pen.
How often should I apply it?
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Twice daily — morning and evening. It takes a few seconds and absorbs quickly so it won't disrupt your routine.
When will I start seeing results?
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Most users notice the first signs of clearer growth within 2–6 weeks. Full nail regrowth takes 3–5 months depending on how fast your nails grow.
Will the fungus come back after I stop using it?
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Once the affected nail has fully grown out clear, the fungal colony in the nail bed has been addressed. Many users continue applying a few times a week after that as a preventive measure.
Can I use it on fingernails too?
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Yes. The pen works on both toenails and fingernails
Is it safe to use with nail polish?
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For best results, apply to clean bare nails so the formula can absorb properly. Nail polish creates a barrier that limits penetration
What if it doesn't work for me?
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Every order is covered by a 90-day money-back guarantee. If you're not seeing results, you get a full refund. No questions asked.