This technology improves blood flow and thereby reduces menstrual cramps with via photo-activated modulation of smooth muscle tissue. The device itself has two light probes that at first look like ear buds attached to the device by a thin wire. The probes are held in place on acupuncture points on the abdomen with adhesive. The light from the probe is emitted for a fixed amount of time. The light stimulation reaches the uterus and increases the secretion of nitrous oxide (NO). The NO spreads over the smooth muscle in the uterine cells and under continuous light stimulation produces a phosphate particle called cyclic guanosine monophosphate (cGMP). These particles continuously flow out and relax the smooth muscles so they receive oxygen and nutrition.
In a study published in the Archives of Gynecology and Obstetrics, subjects using the low-level light therapy (LLLT) showed statistically significant reduction in pain levels after a month and barely any pain after three months. This compares to a placebo group that showed slight pain reduction over time. The study concluded that “skin adhesive LLLT on acupuncture points might be an effective, simple, and safe non-pharmacological treatment for dysmenorrhoea.”