The answer is simple: loosen the stiff calf muscles from the inside
Fuwa.Lab uses medical-grade 20Hz EMS—the same frequency trusted by physiotherapists worldwide.
The gentle pulses reach deep into your calf muscles—far deeper than massage or walking ever could. They force stiffened muscles to contract and expand. The stiffness breaks up. The muscles soften.
Once the muscles are soft, they can pump again. Blood flows back up. Waste drains out. Fluid releases.
That's why many users lose 2-3kg in the first week—just from draining trapped fluid.



