Rated 4.7/5 (1379 reviews)

Glowing Customers

Astria Antifungal Pen

  • Full Fungus Elimination
  • Visible Results in 3-5 weeks
  • Prevents the Spread of Infections
  • Deep Infusion Technology
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Key ingredients +

25% Undecylenic Acid: Targets and destroys fungal spores deep within the nail once the biofilm is broken down.

Manuka Oil: Breaks through the biofilm barrier at a molecular level, allowing treatment to penetrate effectively.

Tea Tree Oil: Weakens and dismantles the biofilm that protects fungus from conventional remedies.

Clove: Calms irritation around the nail and supports natural healing.

Propolis: Speeds up nail regeneration and helps restore healthy appearance after fungal damage.

How it works +

Our breakthrough formula first breaks through the fungus’s protective shield using powerful natural botanicals. Then, 25% Undecylenic Acid gets to work—destroying stubborn spores at their core.

With our Precision Pen Applicator, the treatment reaches deep beneath and around your nail, targeting the fungus exactly where it hides

Shipping & Processing +

All orders are processed within 1–2 business days and shipped straight to your doorstep.

Delivery typically takes 7–10 business days after shipping.

Once dispatched, you’ll receive a tracking link to monitor your order’s journey.

Thank you for your patience as your package makes its way to you!

Money Back Guarantee +

We stand by the effectiveness of the AntiFungal Pen with a 60-day money-back guarantee.

Use it for 60 days, and if you don’t notice visible improvement, contact us at contact@astria.com for a full refund—no questions asked.

Zero risk. Total confidence. Proven results.

Lauren J.
Lauren J.

I spent months trying vinegar soaks and over-the-counter creams with zero results. This pen actually worked—my nails are finally clear and healthy

15,000+ happy customer
FAST SHIPPING
SATISFACTION GUARANTEED
15,000+ happy customer
FAST SHIPPING
SATISFACTION GUARANTEED
15,000+ happy customer
FAST SHIPPING
SATISFACTION GUARANTEED
15,000+ happy customer
FAST SHIPPING
SATISFACTION GUARANTEED
Tried many things, this finally seems to be the solution!

Tried many things, this finally seems to be the solution!

When I say this product is a life changer, I truly mean it. I’ve been struggling with toenail fungus for about 15 years—especially on my big toes. The nails were thick, rough, and embarrassing. I had to file them down constantly and even use special clippers. I never wore open-toe shoes or let anyone see my feet.

After using this product just four times, I’m amazed — only one nail is still a bit thick, but it’s already growing out healthy and normal. I honestly can’t remember the last time my toes looked this good! I even booked my first pedicure and can’t wait to finally wear sandals in public. Nothing else I’ve tried, not even prescriptions or ointments, ever worked like this. Truly the best product ever!

- Alexandria W.

Just 6 Weeks After Using Our Antifungal Pen!

See the stunning transformations our products deliver — real results from real customers.

After
After
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Before
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Engineered with Precision. Backed by Clinical Research.

Engineered with Precision. Backed by Clinical Research.


Powered by nature and science, our formula combines 25% Undecylenic Acid to eliminate fungal spores, while Manuka and Tea Tree Oils dissolve the protective biofilm barrier. Clove soothes inflamed nail beds, and Propolis supports rapid nail repair and restoration for healthier, clearer nails.

How To Use The Antifungal Pen

Follow these simple steps to get started

1. Wash your feet with soap

1. Wash your feet with soap

Wipe your feet after washing and ensure it's fully dry

2. Remove the cap on the pen

2. Remove the cap on the pen

Twist the base of the pen, with the brush pointing downward, until the product dispenses onto the brush tip

3. Gently brush on the toe nails

3. Gently brush on the toe nails

Brush the pen downwards towards your skin

4. Let it absorb

4. Let it absorb

Leave the substance on your nails until it has been fully absorbed

1. Wash your feet with soap

1. Wash your feet with soap

Wipe your feet after washing and ensure it's fully dry

2. Remove the cap on the pen

2. Remove the cap on the pen

Twist the base of the pen, with the brush pointing downward, until the product dispenses onto the brush tip

3. Gently brush on the toe nails

3. Gently brush on the toe nails

Brush the pen downwards towards your skin

4. Let it absorb

4. Let it absorb

Leave the substance on your nails until it has been fully absorbed

Our Results Speaks For Itself

Frequently Asked Questions

Find answers to common questions about our products, shipping, returns, and more.

How long will it take to see results? +

The majority of customers notice relief from symptoms such as itching and irritation within the first few weeks.

In fact, 94% of those who completed the full treatment protocol report seeing results within this timeline:

  • Month 1: Initial visible improvements appear.

  • Month 3: Significant changes become noticeable.

  • Month 6: Most users achieve full elimination of symptoms.

Results may vary from person to person.

Can i use it on my finger nails too? +

Yes you can. The functionality works the same for both your toes and your finger nails.

How long does shipping take? +

We will process the order and ship out within 48 hours of receiving the order.

Delivery will typically take between 7-10 days to be shipped to your door step.

How often should you apply it? +

We recommend applying on the affected areas twice a day. Once in the morning, once at night.

Can i use this if i have sensitive skin? +

Most customers with sensitive skin report that the formula feels gentle and soothing, thanks to its botanical ingredients.

However, because it contains a potent 25% concentration of Undecylenic Acid—the active antifungal component—we recommend performing a test on a small area first, especially if you have known skin sensitivities.

What is your return policy? +

We provide a 60-day money back guarantee for all our customers.

If you don't see any results after 60 days, simply write in to us at contact@astria.com for a refund.

We will process it for you immediately. No questions asked.