Itchy, Burning, Peeling? Hit It Hard.
Klariva™ Antifungal Pen
Maximum-Strength Foot Fungus Pen
Maximum-strength antifungal pen. Built for athlete's foot, jock itch, ringworm, and stubborn foot fungus that won't quit.
Traction + Heat + Time = Results
Quantity — 2-Pack
Itchy, Burning, Peeling? Hit It Hard.
Maximum-strength antifungal pen. Built for athlete's foot, jock itch, ringworm, and stubborn foot fungus that won't quit.
Traction + Heat + Time = Results
Quantity — 2-Pack
Klariva™ Antifungal Pen
Maximum-Strength Foot Fungus Pen
"Tried tea tree oil. Tried filing the skin down. Tried vinegar soaks like an idiot. My doctor said 'keep them dry and wait.' Cool, thanks. About 2 weeks with this pen and the itching is gone. Forgot what it's like to not be rubbing my feet against each other for relief in bed."
"Had a yellow toenail for years, plus the peeling skin between my toes that wouldn't go away. Tried all the OTC stuff, friend told me about this. A few months in and the nail is growing in clearer, skin between my toes isnt peeling either."
"Had this since 2018. Just stopped looking at my own feet at some point. Don't know what I hadn't tried, Vicks, hydrogen peroxide soaks, tried letting them air out etc. Everything was temporary. 3-4 months on this pen and the yellowing is finally gone. Don't dread taking my shoes off anymore."
"So far it seems to be working. My feet are looking better and I'm gaining confidence in being barefoot. For the first time in many many years I'm not completely embarrassed by the look of my feet. THANK YOU KLARIVA!!!"
"Years of yellow on one toenail, plus the cracking between my toes that came and went. Tried everything cheap first, nothing did much. Three months on this pen and the nail edge is growing in clearer, skin between my toes is calm. Honestly don't care about ingredients or any of that, just wanted it to actually work. Going to keep using it as long as it does."
"Took about 2-3 weeks before the itching and peeling really calmed down. Almost gave up at week 4 ngl. Stuck with it because I'd already spent the money. Glad I did. Bought a second pen this week to keep going. Pen design is fine, brush could be a tiny bit bigger but it's not a real complaint."
"Came packaged nicely, pen feels premium. 1 1/2 month of use and the cracking between my toes is gone, yellowing on toes is fading slightly but needs more time. Happy with results so far."
Try Klariva for a full 90 days. If you don't see the itching calm down or the peeling clear up, send it back for a full refund. No questions, no hoops, no restocking fees. Email support@klariva.com anytime.
FREE U.S. shipping on all subscriptions, plus every one-time order over $50 (4-Pack and 6-Pack qualify). Ships within 1-2 business days. 90-day hassle-free return window. Easy returns, just email support@klariva.com.
ACTIVE INGREDIENT
Undecylenic Acid 25% (antifungal).
INACTIVE INGREDIENTS
Aqua, Glycerin, 1,2-Hexanediol, Carbomer, Arginine, Panthenol.
APPLICATOR
Precision twist-pen with soft fiber brush tip.
SIZE & DURATION
3mL per pen. Approximately 14 days of twice-daily use.
PACKAGING
Individually sealed sachet. TSA-friendly.
SAFETY & USAGE
For external use only. Avoid contact with eyes. Apply twice daily for up to 4 weeks. Not for use on nails or scalp unless advised by a healthcare professional. Discontinue use if irritation occurs. Keep out of reach of children.
See It In Action
3 Things Nobody Tells You About Foot Fungus
Most Creams Are Weak
The FDA allows up to 25% undecylenic acid.
Undecylenic acid is the FDA-recognized antifungal active. The maximum allowed strength is 25%. Most drugstore creams stop at 1%. Three failed brands later, you've been buying the same weak formula in different boxes.
Symptoms Stop Too Early
Symptom-free isn't fungus-free.
The itch fades in a week. The fungus doesn't. Skin damage and nail discoloration heal weeks after symptoms disappear. Stop too early and the cycle restarts.
Your Shoes Reinfect You
Spores live in your sneakers for months.
Your shoes are a fungal incubator. Spores live in them for 6+ months. After your skin heals and your nail clears, slipping on yesterday's sneakers puts it right back. Klariva fights through the cycle.
Pro Tip: Apply twice daily. To break the cycle for good, stay consistent past the 4-week mark.
Pro Tip: Apply twice daily. To break the cycle for good, stay consistent past the 4-week mark.
Klariva vs Everything Else You’ve Tried
Stronger than drugstore. Safer than prescription.
| Best Choice KLARIVA | Drugstore Creams Drugstore |
Prescription Pills Pills |
|
|---|---|---|---|
|
Easy To Stick With |
|||
|
Maximum-Strength Formula |
|||
|
Skip The Liver Bloodwork | |||
|
No Drug Interactions |
|||
|
No Greasy Hands, No Spreading |
|||
|
Built For Long Protocol | |||
|
Less Than $1 A Day |
What Changed In 90 Days
reported less itching within 2 weeks
saw visible improvement by week 6
stopped hiding their feet by month 3
saw first results within 3 weeks
FDA-recognized 25% undecylenic acid for athlete's foot, jock itch, and ringworm.
What Changed In 90 Days
reported less itching within 2 weeks
saw visible improvement by week 6
stopped hiding their feet by month 3
saw first results within 3 weeks
FDA-recognized 25% undecylenic acid for athlete's foot, jock itch, and ringworm.
What Real Customers Are Saying
Nathan Hargreaves
"Been dealing with this for 8 years. Skin between my toes always cracking, peeling, raw at the end of a workday. I'm in boots most of the day, hot and sweaty inside them, doesn't help. Tried every brand at the drugstore. Some would clear it for a couple weeks then it'd come right back worse. Wife ordered this after seeing the ad, told me to just try it. Started using it after my shower at night, twice a day. Took about a month before I noticed I wasn't scratching at my feet anymore. Almost six months now and it hasn't come back. Already on my third pen."
Sarah Kessler
"Skin between my toes had been cracking and peeling for years. The itching at night was the worst part. My doctor wanted to put me on an oral antifungal but I'm on blood thinners and a couple of heart meds, and she said no because of my liver. I'd already tried everything at the drugstore by then, none of it stuck. Saw an ad for this pen, figured fine, $30 isn't going to ruin me. Liked that it wasn't another cream to mess with. Doesn't sting, doesn't smell. Three weeks in the peeling started calming down. I've reordered it a couple times now, it's working so far."
Michael Joborn
"Had athletes foot off and on for like 6 years. Skin between my toes was always cracking, burning by the end of the day, all the raw peeling stuff. Tried whatever cream was on sale at CVS every few months. They'd kind of work for a couple weeks then I'd be back where I started. Honestly stopped expecting anything to actually fix it. Saw an ad scrolling randomly and got these on a whim. Been about 2 months now and the peeling is almost gone will continue using it and come back with more updates..."
Lindsey Doughty
"Honestly can't say enough good things about this brand!! After 12 weeks of using it , im finally seeing changes i didn't think id see. I do use it twice a day though really important to stay consistent. Anyway, im finally back to doing my hot yoga without hiding in those weird toe shoes. Safe to say im one happy customer and on their subscription plan"
Tom McKeown
"Athletes foot from god knows where, I've got peeling on the bottom of my foot, dry scaly skin around the toes, all the nasty crap.. Used this pen for like twice a day for about 2 months, the peeling is finally calming down where it was worst and it doesnt look disgusting anymore. Honestly didn't really expect it to work."
Aleksandar Kovač
"Been playing soccer for over 13+ years between league and pickup. Feet are wrecked, cracking between my toes, burning after matches, you know all the nasty stuff I assume if you're reading this you know what I mean. Friend at the field swore by this thing. Tried it and quite surprised he was right it does actually do the job. Anyway 5 stars from me 👍"
Choose Your Supply
Pick The Right Klariva Plan
All plans backed by our 90-day money-back guarantee. Cancel subscriptions anytime.
Save up to 19% on every refill · cancel anytime
The Real Cost
Of Not Treating
This
-
$300Failed creams (×6 brands)
-
$400Doctor visits
-
$300Foot specialist
-
$200Ruined sneakers
-
$150Anti-fungal sprays
-
$80Home remedies
-
ongoingSandal season
-
ongoingThe 2AM itch
-
ongoingHiding your feet
The Real Cost
Of Not Treating
This
-
$300Failed creams (×6 brands)
-
$400Doctor visits
-
$300Foot specialist
-
$200Ruined sneakers
-
$150Anti-fungal sprays
-
$80Home remedies
-
ongoingSandal season
-
ongoingThe 2AM itch
-
ongoingHiding your feet
Klariva Fits Your Routine
After The Gym
30 seconds after your post-workout shower. Built for the locker room crowd.
Long Days On Your Feet
Whether you're in work boots, scrubs, or sneakers all day, Klariva is built for tough conditions.
When Pills Aren't An Option
Topical formula avoids the liver and drug-interaction risks of oral antifungals.
Daily Skin Care
Twice a day, 30 seconds. Before socks in the morning, before bed at night. That's it.
See Real Progress In Weeks
Where you are. Where you’re going. In weeks, not years.
Skin
Peeling, dry, itchy
Toe webs
Raw, stinging
Comfort
Burning, irritated
Confidence
Hiding your feet
Skin
Smooth, clean
Toe webs
Healed
Comfort
Calm, relief
Confidence
Bare feet, no shame
Sooo easy to use...
Clean
Wash and dry your feet, focusing on between the toes. Dry skin lets the formula absorb better.
Twist & Apply
Twist the cap to release the formula into the brush tip. Apply directly to the affected area. No mess, no spreading, no greasy fingers.
Repeat Twice Daily
Apply morning and night for at least 4 weeks. Keep going past the 4-week mark for stubborn cases. That's when the loop breaks.
Clean
Wash and dry your feet, focusing on between the toes. Dry skin lets the formula absorb better.
Twist & Apply
Twist the cap to release the formula into the brush tip. Apply directly to the affected area. No mess, no spreading, no greasy fingers.
Repeat Twice Daily
Apply morning and night for at least 4 weeks. Keep going past the 4-week mark for stubborn cases. That's when the loop breaks.
Frequently Asked Questions
When used as directed on the skin around the nails, many customers report relief from symptoms like itching and irritation within the first few weeks. Individual experiences may vary.
Each pen holds 3mL — about 2 weeks of twice-daily use across multiple toes. Most subscribers use one pen per 2 weeks depending on how many areas they're treating.
Klariva's formula is designed to treat common fungal skin infections like athlete's foot and ringworm. While it is not intended for prevention, maintaining proper hygiene and following usage directions can help support overall skin health.
Orders usually ship within 24-48 hours, and delivery typically takes 7-10 business days (domestic).
• Relief from itching, burning, and irritation caused by athlete's foot and ringworm
• Support for skin comfort and hygiene around affected areas
• Easy, targeted application for consistent use
• Includes moisturizing botanicals to help maintain soft, smooth skin
We use 25% Undecylenic Acid, the maximum-strength antifungal active recognized for athlete's foot, jock itch, and ringworm, combined with skin-conditioning glycerin to support comfort around the affected area. Our formula contains no parabens, artificial dyes, or synthetic fragrances.
With consistent use as directed, many users report symptom relief, such as reduced itching or discomfort, within the first 2-4 weeks. Continued use for several weeks may be needed for full resolution. Individual results may vary.
We recommend applying as directed on the label. Consistent use is important for full symptom relief and effective treatment of conditions like athlete's foot and ringworm.
Yes. Our formula is intended for use on the skin around the nails and between the toes, as directed. It is not intended to treat fungal infections of the nail itself.
Many users with sensitive skin tolerate the formula well, as it includes soothing botanical ingredients. However, because the product contains a high concentration of Undecylenic Acid (an active antifungal drug), we recommend performing a patch test before full use, especially if you have known sensitivities.
Yes. Our antifungal formula is designed for adult use and may be used by both men and women to treat common fungal infections like athlete's foot, ringworm, and jock itch. As with any over the counter drug, follow label directions and consult a healthcare provider if you have sensitive skin or underlying conditions.
Yes. Simply add Klariva pen application after washing or soaking your feet. It complements most foot-care routines.
Undecylenic Acid (25%), Aqua, Glycerin, 1,2-Hexanediol, Carbomer, Arginine, Panthenol.
For best results, it's important to use the product as directed for the full recommended treatment period, even if symptoms improve earlier. Stopping too soon may reduce the effectiveness of the treatment.
Klariva is designed for skin around the nails and between the toes. Some customers report improved appearance of skin and nail edges with consistent use, but the product is not intended to treat fungal infections of the nail itself. For specific nail concerns, consult a healthcare professional.
What Klariva Customers Are Saying
Ready to Stop Thinking About It?
90 days to try the maximum-strength antifungal pen. Full refund if it doesn't work for you.