DO NOT use ONEflow in the following cases:

• For implanted electrical devices (such as pacemakers)
• In the presence of larger metal implants in the pain area. Copper spiral is no problem!
• For insulin pump wearers
• If you have a high fever (e.g. > 38 °C)
• For known or acute cardiac arrhythmias and other cardiac excitation and conduction disorders
• For seizure disorders (e.g. epilepsy)
• If you are already pregnant
• If cancer is present
• After surgery, where increased muscle contractions could disrupt the healing process
• Close to the heart. Stimulation electrodes should not be used on any part of the anterior chest (indicated by ribs and sternum), especially not on both large pectoral muscles. Here it can increase the risk of ventricular fibrillation and cause cardiac arrest
• On the bony skull, in the area of ​​the mouth, pharynx or larynx
• In the area of ​​the neck/carotid artery
• In the genital area
• On acutely or chronically diseased (injured or inflamed) skin (e.g. painful and painless inflammation, redness, skin rashes (e.g. allergies), burns, bruises, swelling and open wounds as well as those in the healing process), on surgical scars that are in the process of healing )

Using the ONEflow does not replace medical consultation and treatment. If you have any type of pain or illness, always consult your doctor first!

ONEflow is an innovative remedy that can relieve menstrual pain. It is a portable TENS machine specifically designed to relieve period pain.

No, the use of ONEflow during pregnancy is strictly prohibited. If you are pregnant or think you may be pregnant, you should consult your gynecologist before using ONEflow.

The ONEflow TENS device itself has no side effects. The pads we use are generally well tolerated and side effects are rare. The pads are also latex-free and allergy sufferers friendly. If you experience skin irritation or something similar, we ask you to pause the use and consult a gynecologist.

Definitely! ONEflow is designed to relieve primary menstrual pain (dysmenorrhea). But it can also help relieve the pain of secondary menstrual pain due to conditions such as endometriosis, fibroids, PCOS, adenomyosis or pelvic inflammatory disease.

However, if you suspect or detect such an illness, we advise you to urgently consult a gynecologist. ONEflow does not cure illnesses, but rather helps you relieve the pain or make you forget it completely.

No! The device is completely quiet, so no noise can be heard. With the drop pads you can also wear it so no one even sees it.

Yes, you can also use our ONEflow TENS device with a spiral. It works with both the copper and hormonal IUDs. However, if you are unsure, please contact a gynecologist beforehand.

How do we best say this? It's almost too good to be true - TENS technology is a technology that has been around since the 1970s and has been developed over time, making it even safer. It is a technology that has been used in physiotherapy for several years and is sometimes even covered by health insurance companies. So not only doctors, but also professional athletes swear by this technology for pain treatment for muscle pain - AND also Dr. med. Ulrike Lange (co-founder) is more than convinced by TENS technology. Additionally, our ONEflow is TGA certified, FDA approved and CE marked.

Yes, definitely! ONEflow is an effective remedy for menstrual problems. The TENS technology used in ONEflow is a recognized pain relief method that has been used in physical therapy for muscle pain for several years.

ONEflow is a universal remedy for menstrual cramps and can be used safely by most women and other menstruators. However, if you have existing health conditions or are unsure, we recommend that you consult a gynecologist before using it for the first time.

No, ONEflow is not waterproof. Please ensure the device and pads are and remain dry before use. Your ONEflow must under no circumstances come into contact with water to ensure proper function and avoid damage.

ONEflow is a rechargeable device because we want ONEflow to be your forever companion. It comes with a USB charging cable so you can easily charge it whenever you need it. You can connect the charging cable to a laptop or to a socket using a USB power adapter (output: max. 5 V/2 A). It takes approximately 40 minutes for your ONEflow to be fully charged and the battery lasts up to 8 hours (net running time).

Every person and their perception of pain and pain tolerance are different. Therefore, we cannot say 100% that it completely stops the feeling of pain for everyone. BUT it is extremely effective in pain management and pain reduction. In most cases, the pain relief is so extreme that it feels like you've hit the 'off' switch on your cramps.

Definitely! The design and shape were specially developed so that you can wear it from anywhere - especially outside your four walls. The Drop Pads are the perfect to-go solution. Just please do not wear it for swimming or showering and avoid contact with water completely.

Many of our customers use ONEflow while they sleep. It is not harmful. However, we don't recommend it for safety reasons as it could come off while you sleep and get on places like your neck or face.

ONEflow is specially designed to relieve period pain - including the pads, which have a perfect shape for your abdomen and back. The good news, however, is that TENS devices have been used in physiotherapy for several years to relieve other types of pain - especially all pain around the muscles and thus for muscle relaxation. IMPORTANT: However, this should always be done in consultation with a gynecologist.

Yes, you can wear ONEflow while exercising. The device is small and discreet and can easily be worn under your clothes. It is designed for active lifestyles, so you can get relief from menstrual pain while exercising. Just not when swimming!

Can I use ONEflow throughout my period?

No, for security reasons ONEflow cannot be used while charging. Please wait until the device is fully charged before using it.

Pain is very different and does not have a “one size fits all” – but ONEflow should be exactly that – uniform for every body. Technology works by stimulating something we all have; Dermatomes on our skin. ONEflow's electrode pads are designed to move comfortably and adapt flexibly with all bodies. The different pads allow you to freely choose what works best for your body. In addition, our pads have the largest possible contact surface for maximum pain relief.

ONEflow was specifically designed for menstruating people who suffer from period pain. It is compact, portable and easy to use, making it an ideal TENS machine for period pain. Above all, it is also the perfect companion!

We recognize that every body responds differently to pain relief, so we have a hassle-free returns process. If you feel that ONEflow is not helping you with your pain, we will give you a full refund.

We have a 60-day return policy, which means you have 60 days from receipt of your item to request a return.

You have the right, and we encourage you, to test your ONEflow as often as possible within these 60 days to make sure it works for you.

‍To start a return, you can contact us at hello@menstruflow.de . If your return is accepted, we will send you a return shipping label and instructions on how and where to return your package. Returns without prior request will not be accepted. Please note that you use the complete starter kit including the original packaging as a return. Used pads that were ordered outside of the starter kit cannot be exchanged.

Imagine “buzzing” is a feeling – that’s exactly how electric currents feel. It's a bit like having the tingle of television interference (TV static) on your skin. It's completely painless, but can be a little strange at first!

ONEflow uses TENS technology (transcutaneous electrical nerve stimulation) to relieve period pain. Electrical impulses are delivered to the painful areas of the skin to block pain signals and produce the body's own pain-relieving substances (endorphins).

As long as you want. Once you turn on ONEflow, it runs for 30 minutes and then turns off. You can then turn it on again as often as you need. With a fully charged battery it will last for 7-8 hours (net running time).

The effects of ONEflow may vary from person to person. Some users report immediate pain relief, while others require regular use over a few hours or days to experience significant relief from their menstrual pain.

The frequency of changing the pads depends on your individual use and your personal comfort - do you also wear the pads when exercising? Do you find using it too often unhygienic? And and and. We would be happy to help you find out how often you should change the pads with our subscription model. Once you have completed your subscription, you will receive new pads regularly during the selected period, so you never run out of them. In general, the pads last up to 30 uses (1 use = 1x stick on and take off again).

ONEflow is easy to use. The device is attached to the body using the drop pads and/or the flow pad. It's best to place the pads exactly where you feel the pain. The intensity can be individually adjusted between 20 levels.

Not yet, but we're working on it! 🙂 News about this will follow in the newsletter.

ONEflow can be purchased directly on our website. You can also sign up for our subscription to receive regular deliveries of your replacement pads - so you always have them on hand. Our ONEflow will later be available in pharmacies and retail stores. Updates will follow in the newsletter .

ONEflow's different modes and intensity levels are designed to provide you with a tailored solution for your pain relief. You can choose between 20 intensity levels and 6 modes. This allows you to adapt the therapy 100% to your comfort level and the degree of pain you experience. The different modes (pulsating as well as continuous and continuous pulses) allow you to choose the type of pain relief that is most comfortable and effective for you.

Our pads are designed to give you a reliable and comfortable experience across multiple uses. As a rule, if handled carefully and used regularly, they last for around 30 uses (1 use = 1x stick on and take off again).

To support the longevity of the pads, I recommend that you keep the skin area clean and dry before applying the pads. After each use, you should carefully remove the pads and stick them back on the original protective film. Store them in a cool, dry place to maintain adhesive strength.