EndWarts® PEN | easy and effective home wart removal

What is EndWarts® PEN?

EndWarts® PEN is an effective wart treatment that takes only seconds to apply. The solution can be used by the whole family to remove warts and verrucas on hands, feet, elbows and knees.*

Medically reviewed by Mylan Staff, April 24, 2019.

Effective wart removal

EndWarts® PEN contains an effective formic acid solution delivered in a convenient applicator that makes the treatment fast and easy. The formic acid in the pen penetrates the wart and dries it out.

8 out of 10 warts resolved with Endwarts PEN**

The ergonomic EndWarts® PEN is designed to make wart removal simple and precise. The pen has a triangle-shaped grip that ensures steady application, and a unique tip that automatically delivers the right dose when pressed against the wart.EndWarts® PEN

  • Using EndWarts® PEN takes only a few seconds once a week, so the wart treatment itself causes little or no stress nor interruption of your day. The formic acid is absorbed directly into the wart and dries instantly so you can continue your day with minimal disruption.2

  • The pen contains enough acid for approximately 30 treatments.2

Effective wart removal – suitable for most wart sufferers

When used correctly, EndWarts® PEN should not cause infections or scarring.2 It is suitable to treat the whole family, *including children or small children (please consult a Healthcare Professional for children under 4 years).2

EndWarts® PEN can also be used by diabetics, and pregnant and nursing women2. Please consult a health care professional before taking any new medicines during pregnancy.

Treatment of children under 4 years2

After consulting with a Healthcare Professional, EndWarts® PEN can be used to treat warts on children less than 4 years. As small children have soft, thin skin, it is important to reduce the dose by only pressing the tip of the pen against the wart once and reducing the frequency.

Children should always be treated by an adult, as the EndWarts® PEN solution is corrosive and needs to be handled with extra care. Follow the instructions carefully and avoid applying the solution to the skin that surrounds the wart. There are many different natural home remedies for warts, although there is very little scientific research to back up claims that they are effective. Most home remedies involve applying something to the wart, most commonly duct tape for a few days. EndWarts® PEN, if used correctly, is unlikely to be painful to children.

The formic acid in the EndWarts® PEN penetrates the skin immediately, so if the child is prone to sucking his or her fingers where the wart is located, or the treatment causes burning or stinging, their hands can be washed with water after treatment.

Treatment of people with diabetes2

Diabetics should only use EndWarts® PEN with warts on healthy skin (undamaged and unaffected by diabetic disease) and with extra care. Always consult your doctor/nurse or foot care specialist if you experience any problems during treatment.

Where can I buy EndWarts® PEN?

EndWarts® PEN is available online and from your local pharmacy.

Buy EndWarts® PEN

Frequently asked questions

Want to know more about EndWarts® PEN and EndWarts® FREEZE? Read our frequently asked questions.


About warts and verrucas

Warts are caused by HPV viruses and there are four different types, including verrucas. Find out more about the different types of warts and what causes them.

What are warts and verrucas?

EndWarts® PEN

EndWarts® PEN is an effective wart treatment that takes only seconds to apply. The solution can be used by the whole family to remove warts and verrucas on hands and feet*. For children under 4 a HCP should be consulted.

Find out more
Endwarts Freeze

EndWarts® FREEZE

EndWarts® FREEZE is our latest alternative to EndWarts® PEN that uses rapid freeze technology (otherwise known as cryotherapy) to effectively remove warts and verrucas from hands and feet.

Find out more

Using EndWarts® PEN

EndWarts® PEN can be used on hands, feet, elbows and knees

The image below shows on what body parts EndWarts® PEN can be used.

Endwarts Pen

Do not use EndWarts® PEN to remove facial or genital warts, molluscum or other skin lesions.


1. To open, the cap is rotated until the orange strip on the pen is in line with the small cavity on the cap. Once in line, the cap can be safely pulled off the body of the pen. To close the cap, push it back tightly and rotate to locked position.

Endwarts Pen

2. Press the tip of the pen lightly against the wart for three seconds . Be careful not to apply the solution to the surrounding skin. If the wart is larger you may need more solution.

Endwarts Pen

Done! For a successful result, treat regularly once a week until the wart/verruca has completely disappeared, otherwise the process stops. If treatment is irregular, the whole process takes longer.

Before treating foot warts (verrucas) or warts that are old and/or hard, soak them in warm water until the skin is soft. Use tweezers to scrape off the skin on top of the wart. For thick skin on inward-growing verrucas (foot warts), remove the hard skin carefully.

Avoid applying the solution to the area surrounding the wart, since formic acid is corrosive and can damage healthy skin. This is especially important when treating areas of thin skin, with children for example, or on top of the hand.


Follow the dosage and application instructions carefully as the solution is corrosive.
To ensure best results always read the instructions carefully before use.

Download the instruction leaflet to read the full instructions for use.

Storing EndWarts® PEN

Always store EndWarts® PEN with the child-resistant cap on, and the tip down to prevent it from drying out before the expiration date. Always keep out of sight and reach of children.


  • 1. Handjani et al. Iran J Dermatol 2016; 19: 1-5
  • 2. EndWarts® PEN instructions for use
  • * Diabetics should only used Endwarts PEN with Warts on healthy skin (undamaged and unaffected by diabetic disease) and with extra care. Always consults your doctor/nurse or footcare specialist if you experience any problems during treatment
    **Based on a study of 85% formic acid used to treat warts showing complete resolution over a 4-week period

END-2022-0425: March 2023