We offer a 100% money-back guarantee on our Pain Patches. Contact customer service at support@gokailo.com to manage returns and refunds
Helping Over 1M+ Users!
30-Day Money Back Guarantee: The Flexโข is a flexible, non-invasive, non-toxic, drug-free solution designed to help relieve pain on contact, backed by clinical trials. It delivers the same effectiveness as the original Kailoโข pain patch, but is specially designed for areas that bend or need a more flexible fit. Each Patch includes: 1 Reusable Flexโข, Free Adhesives.
Simple to use. Easy to wear.
The short version of the science: Kailo is made with copper, silver, silicon and other natural elements arranged in a patented pattern. It works with your body's own electrical signals. No drugs, no batteries, nothing absorbed into your skin. Learn how it works.
Why people choose Kailo.
What we're comparing | Flex | Disposable patches | TENS units | Creams and gels |
|---|---|---|---|---|
Drug-free | Yes | Often medicated | Yes | Often medicated |
Wires or batteries | None | None | Yes | None |
Reusable | As long as [30 days] | Single use | Yes | Used up, bought again |
Wear all day | Yes | Hours | Short sessions | Reapply through the day |
| ย | ย | ย | ย | ย |
Try Flex for 30 days, risk free.
Wear it, move it, make it part of your day. If it isn't right for you within 30 days, send it back for a full refund. Before you do, book a free 20-minute video call and we'll help you find your best placement.
It varies from person to person. Some people tell us their pain goes away completely, others notice a smaller change, and placement is usually what makes the difference. If you are feeling some relief and want more, try moving the patch a few inches at a time, or add a second patch for a larger area. Our placement team will walk you through it on a free video call if you would like help.

Kailo’s technology was tested against an identical placebo in 156 participants, who were randomly assigned to one or the other. Published in a peer-reviewed journal.ย Read the full trial

A 30-day study of 128 people living with ongoing pain, published in a peer-reviewed journal.ย Read the full study
Individual results vary. These are individual experiences, not typical results.
As featured in
Why Flex
No pills, creams or smells. Nothing is absorbed into your skin.
Printed on light white Tyvek, with rounded edges and a slightly smaller shape than the original Kailo.
Wear it at work, while you sleep, even in the shower. Reusable for up to a month, and longer with care.
Designed and made in America, with free placement help from a real person.

How it works
What it's made of
Flex is two thin layers, made in the USA. Nothing goes into your body, and there's nothing to charge.
The science
Kailo's technology has been tested in a placebo-controlled trial and a 30-day study of people living with ongoing pain, both published in peer-reviewed journals.
Kailo's technology was tested against an identical placebo in 156 participants, who were randomly assigned to one or the other. Published in a peer-reviewed journal. Read the full trial
A 30-day study of 128 people living with ongoing pain, published in a peer-reviewed journal. Read the full study
Study results are participant-reported. Individual results vary.
Flex vs other options
| Flex | Disposable patches | TENS units | Creams and gels | |
|---|---|---|---|---|
| Drug-free | Yes | Often medicated | Yes | Often medicated |
| No wires or batteries | None needed | None needed | Wires and batteries | None needed |
| Reusable | As long as 30 days | Single use | Yes | Used up, bought again |
| Wear all day | Day and night | A few hours | Short sessions | Reapply often |
| No mess | None | Often messy | None | Often messy |
| Wear it in the shower | Yes | Varies | No | Washes off |
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Getting started
Day 1
Place your patch on the area where you want comfort and wear it through your day.
Day 1
Move it a few inches if needed. Small moves make a big difference.
Day 1 or 2
Still looking for your spot? Book a free video call right away and we'll help you find it.
Every day after
Wear it day and night, swap adhesives as needed, and add a second patch if you want.
What's in the box
Will Kailo help my pain?
Kailo isn't made for one kind of pain. It's a drug-free patch you place where you want comfort.
The most common places people wear Kailo
Upper or lower, it stays put as you move.
Flexible enough for curves.
Wear it day and night.
Flexes as you bend and move.
Light enough to forget it's there.
And many more. These are just the most common. People also wear Kailo on their elbows, wrists, hands, calves and anywhere else they want comfort.
Book a free 20-minute video call. A real person will help you find your best placement and answer your questions.
Please don't use Kailo if you are pregnant or have a pacemaker or other implanted electronic device, and remove it before an MRI or CT scan. Talk to your doctor if you have questions about your health.
Wear it, move it, make it part of your day. If it isn't right for you within 30 days, send it back for a full refund. Before you do, book a free 20-minute video call and we'll help you find your best placement.
Questions
Flex uses the same Kailo technology in a new Polyethylene plastic (Used in plastic products like milk cartons and kitchen utensils) patch. It's lighter, flexes with you.
Each Flex patch is reusable for as long as 30 days of wear. Swap the adhesive when it stops holding and keep wearing the same patch.
Start on the area where you want comfort, gold side facing out. If you'd like more, move it a few inches and try again. Placement is personal, so small moves can make a difference.
Want help? Book a free 20-minute video call with our placement team.
Yes. Many people wear two or more patches on different areas at the same time. That's why the 3 and 5 patch bundles are our most popular.
Yes. You can wear the Flex day and night, including in the shower.
Each patch comes with 5 free adhesives. Stick one to the back of your patch, then place it on your skin. When it stops holding, peel it off and add a fresh one. Flex adhesive 5-packs are available anytime.
You have 30 days to try Flex risk free. If it isn't right for you, send it back for a full refund. Before you do, let us help you find your best spot with a free placement call. See our return policy.
We offer a 100% money-back guarantee on our Pain Patches. Contact customer service at support@gokailo.com to manage returns and refunds
Order a Flex pain patch.
Try it for up to 30 days.
TRUST KAILO
We hope you will be happy with your purchase. If for any reason you are not satisfied, we hope to make it right. Please review our return policy below, select a preferred method of contact and weโll do our very best to accommodate your return.
Reducing pain is your first priority and it is also ours. We have designed our return policy to promote that.
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These are our return policy best practices:
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First Step:ย Contact our customer service team atย support@gokailo.comย and let them know that youโd like to return your products.
Second Step:ย Our customer service team member will ask you some questions about your efforts to reduce pain using our patches. Please work with us through this process because we want to give you the best opportunity possible to eliminate your pain. They will ask you:
Third Step:ย Our customer service team will send you a return authorization form. If you are returning The Element patch and live in the U.S., our customer service team will also provide you a prepaid envelope to return the product.
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Fourth Step:ย Mail your product(s) to the address on the return authorization form within 2 weeks from the time we email you the return authorization form. See the detail below about return policy lengths by product and what should be returned.
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Fifth Step:ย Our returns team will receive your return, compare it to what you purchased, and refund you according to what you returned. Once returned products are received, refunds are issued within 3-5 business days to the credit card that was used to make the purchase.
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Return Policy Length: Contact Us Withinย 30 days
Subscriptions are not eligible for returns
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What should be returned:
Return Policy Length: Contact Us Withinย 90 days
Subscriptions are not eligible for returns
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What should be returned:
Return Policy Length: Contact Us Withinย 90 Days
Subscriptions are not eligible for returns
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What should be returned:
Return Policy Length: Contact Us Withinย 90 Days
Subscriptions are not eligible for returns
ย
What should be returned:
Return Policy Length: Contact Us Withinย 30 Days
Subscriptions are not eligible for returns
ย
What should be returned:
Return Policy Length: Contact Us Withinย 90 Days
Subscriptions are not eligible for returns
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What should be returned:
Return Policy Length: Contact Us Withinย 90 Days
Subscriptions are not eligible for returns
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What should be returned:
Return/Exchange Policy Length: Contact Us Withinย 30 days
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What should be returned:
Please email us at the link below and include your name and order number for questions about a previous purchase.
Kailo is far more than just a business for us. If you need to reach us for any reason, please email support@gokailo.com. A live agent can answer questions about our company, our products, placement help for your specific pain, and order-and-return information.