Updated by Customer Care team
Great question. Noha is a non-invasive, drug-free pain-management solution that has undergone rigorous clinical testing. It is also FDA approved, TGA certified and CE marked. The risk of adverse side effects is considered low.
Potential side effects inlcude: Mild skin irritation. In response to electrical stimulation, it is quite normal for the skin (particularly if sensitive) to develop a mild reaction/irritation.
The long-term effects of TENS stimulation are unknown. However, TENS machines have been around since the 1980's.