Your fungus doesn't sleep. Your treatment shouldn't either.

Your fungus doesn't sleep.
Your treatment shouldn't either.

The complete day-and-night system built for full 24-hour coverage. See visible improvement in weeks.

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100-Day Money-Back Guarantee
Free Shipping in the USA
No Subscription, One-Time Purchase
Maximum OTC Strength: 25% Undecylenic Acid
Excellent Customer Service
Treatonic Products As Seen On
Dr. Lukas Reinhardt, Treatonic medical advisor

Dr. Lukas Reinhardt

Podiatrist, USA


20+

Years experience

Medical advisor

Treatonic Products Recommended By:

Dr. Lukas Reinhardt

Board-Certified Podiatrist


Dr. Reinhardt is one of our key medical advisors. With deep clinical expertise in treating toenail fungus, he reviews Treatonic formulas so you can feel confident knowing our products are backed by real medical experience with safety in mind.

Customer Testimonial

See why customers trust Treatonic.

Why we built Treatonic

"Whoever walks in my shoes"

When my son was just over a year old, he invented his favorite game: stealing my shoes, sticking his tiny feet inside, and clomping around the house. The more I yelped "no, no, no!" the harder he giggled. He'd stumble, cry, pick himself up, and do it all over again. He wanted so badly to walk like a grown-up.

I laughed every time. And then, every time, I went quiet. Because I couldn't stop worrying about his feet.

I've had toenail fungus since high school. I've tried the creams, the lacquers, the home remedies. It would fade for a while. It always came back.

After years of trying everything with nothing to show for it, my husband and I dug into the research ourselves. We read case studies. We talked to podiatrists. One detail kept nagging at us: most antifungals are only active during the day, which leaves the fungus eight quiet hours every night to recover. So we built something that doesn't clock out at night. That's how our Day & Night System was born.

Evelyn, Treatonic Founder

Word of mouth

You made us TikTok famous.