General Information

  • 1. What is the Willow Curve?

    The Curve is new, high-end digital pain-relief technology embodied in a medical device. Physicians and patients report that the Curve can be used to temporarily relieve minor joint or muscle pain. Use can result in temporarily reduced pain and improved mobility and performance.

  • 2. How does the Willow Curve work?

    The Curve has a bio-sensory data capture component, a central processing unit that analyzes the data and then creates and delivers a customized digital prescription. This digital prescription is composed of multiple energies, which change thousands of times per second.

    This smart laser device has been observed to chemically suppress local pain signals and activate latent transforming growth factor protein (TGF).

  • 3. How does the Willow Curve compare to laser units on the market?

    Physicians and patients report favorable responses (reduced pain and improved performance) after using the Willow Curve. The Curve can be applied and used safely by the patient and does not require the use of protective equipment such as eye goggles. The Curve offers hands-free application and does not require a health care professional. The cost per treatment is approximately $0.05, compared to the average pain medication cost of $0.90 per pill and average therapeutic pain laser costs of greater than $50-$200 per treatment. People can use the Curve safely and effectively at home without the expense and inconvenience of traveling to a health care professional. The observed favorable therapeutic effect can offer freedom from potentially dangerous and lethal medication side effects, and frequently permits postponement of surgery or an alternative for those who are ineligible for surgery.

  • 4. What are the side effects?

    The Curve can be used as long and often as you wish since there are no adverse side effects. The more you use it, the more favorable effects accumulate.

  • 5. How do I use the Willow Curve?

    The curve is easy to use, the instructions are simple and easy to read, Curves will be shipped with a video instruction card, the information with videos also are on-line and there is direct support from Willow Experts and physicians in the Medical Department.

  • 6. Is the Willow Curve a scam?

    We’ve read the blog posts about “Willow Curve Scam” and the like. They are writing about a “scam” because of their own disbelief that digital technology could actually cause physiological changes which reduce pain. Read more about the Willow Curve scam facts.

  • 7. Are there clinical studies on the Willow Curve?

    In fact, yes. There have been multiple studies on the effectiveness of the Willow Curve and continued research is in progress to make the Willow Curve even better. Click here to read complete studies.


  • 1. Do you accept payment from Flexible Spending Accounts (FSA)?

    You can use FSA and HSA accounts to purchase a Willow Curve.

    You should save your receipt for documentation. FSA Eligible products designated with this symbol can be purchased with an FSA debit card and do not require a prescription.

  • 2. Do I need a prescription to purchase the Willow Curve?

    Purchase of the Curve does not require a prescription.

    Some Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA) may require a physician’s prescription. Since the Curve is a medical device, it may qualify as a medical deduction.

  • 3. Is The Willow Curve covered by my insurance/Medicare?

    Medicare has approved it for coverage but check with your physician. Coverage by other insurance companies is being pursued.  In other cases, a letter of medical necessity and a prescription submitted from your physician, is required for it to be a covered cost.

  • 4. Does the Willow Curve come with a warranty?

    A complete copy of the warranty can be found here.

Technical Device Information

  • 1. Is it safe to take my Willow Curve through airport X-Ray machines?

    The Willow Curve can safely go through airport screening.

    Even if the Curve can fit in checked baggage, since it is a delicate medical instrument, we recommend placing it well protected in carry-on luggage. The TSA may wish to examine the Curve, but we are not aware of any instance or the Curve being rejected for carry-on.

  • 2. Can I use the Willow Curve on a joint that has been replaced?

    The Curve can be used on a joint that has been replaced.

    If approved by your surgeon, the Curve may be used immediately or long after complete or partial joint replacement, even in the presence of pins and screws. Physicians and patients report favorable results (pain reduction and improved mobility) on prosthetic joints. A number of patients using the Curve have been able to postpone joint replacement. Physical Therapists have observed better performance and faster rehabilitation in their patients using the Curve after joint replacement surgery.

  • 3. Is it safe to use the Willow Curve if I use a pacemaker/defibrillator?

    The Curve should not be a problem with irregular cardiac rhythms and pacemakers.

    The Curve was tested at the University of Michigan College of Engineering and was found to comply with FCC and Industry Canada (IC) EMC Compliance. There are requirements for pacemakers to be able to withstand a certain amount of RF without being affected. This means that a product that meets Class B limits should never interfere with a pacemaker. Since that cannot be a 100% guarantee, if you have any questions, you should share this information with your doctor and seek their opinion.

  • 4. How is the Willow Curve powered?

    The Curve can run off a customized Willow battery pack, or off wall current.

    The Willow Battery pack is rechargeable by placing the Curve on a charging base connected to wall current by a power supply. All items are included. The small connector of the power supply permits the Curve to run off wall power. This will run the Curve, but not charge the battery.

  • 5. Will the Willow Curve fit my body?

    The Curve will fit 98% of the population.

    The circumference of the area to be treated must measure under than 21” for the Curve to properly fit. For the knee joint, measure the circumference just below the knee cap (patella).

  • 6. How long should I treat an injury?

    The default time for a single treatment is 25 minutes. The number of treatments required for full relief will vary depending on the individual and their condition. There are no adverse side effects, so you can use the Curve as often as you wish. The beneficial results are cumulative, so the more you use it, the greater the benefits.

    People with acute or chronic serious conditions often require more treatments with the Curve. Many of these people have committed themselves to an intense treatment program to achieve favorable results. Physicians in our Medical Department are available to help Curve users design their own personal treatment program.

  • 7. Can the Willow Curve be used on a 220V electrical outlet?

    The power supplies do accept up to 240VAC but they only have the US blade connections. Therefore, to use the Willow power supply, a 220v converter plug will be required.

  • 8. Can I use the Willow Curve while pregnant?

    The Curve has not been tested during pregnancy and therefore cannot be recommended for use during pregnancy.

  • 9. Can I use the Willow Curve on an area with an infection?

    The Curve should not be used over an infected area, as this may promote the spread of the infection to other areas of the body.