About Safety

The product is safe even though it uses electromagnetic waves.

DENBA is a technology that uses extremely weak electricity (electromagnetic waves) to gently vibrate water molecules inside food and human cells.

If a substance contains water, these vibrations can activate the water molecules and help maintain freshness for a longer period.

However, the term "electromagnetic waves" may cause concern or leave a negative impression for some people.

That is why correctly understanding what electromagnetic waves are will help people understand the safety of DENBA technology.

About the Frequency of Electromagnetic Waves

The frequency of electromagnetic waves refers to the number of wave oscillations per second. It is measured in Hertz (Hz). For example, if a wave repeats 10 times per second, its frequency is 10 Hz. The impact on humans can vary greatly depending on the frequency.

DENBA's technology and products are backed by a strong track record and proven reliability, ensuring their safety and effectiveness for worry-free use.

Visible "colors" are also electromagnetic waves

Looking at the diagram of types of electromagnetic waves above, extremely low frequencies are around 60Hz, and as frequency increases, they become radio waves. Radio, television, microwave ovens, and mobile phones all use radio waves, which are indispensable in our daily lives. With even higher frequencies, the waves enter the band called infrared. When people hear “infrared,” they may associate it with something beneficial to the body. In fact, infrared is also a type of electromagnetic wave. The rainbow shifts through seven colors from red to violet, and “infrared” means the color beyond red. From there, the spectrum enters visible light, and all colors we see are also electromagnetic waves.

Beyond violet lies the band called ultraviolet, and many people associate ultraviolet with harmful effects on the body. That is indeed the case, and it is said that frequencies as high as ultraviolet light (789THz or 789000000000000 hertz) can affect the skin and body. Above that, X-rays and gamma rays are known to be dangerous enough to damage cells.

On the other hand, if the frequency is lower, it passes through the body and is said to have no effect on it.
Even though they are all electromagnetic waves, they cannot be treated as the same; depending on the frequency band, some may have harmful effects, while others may have beneficial effects on the body.

Research studies on the beneficial effects on health

DENBA JAPAN Co., Ltd., the developer of the technology, promotes multiple joint research studies on the positive effects of DENBA on health through industry-academia collaboration with leading research institutions, aiming to return the research results to society.

Examples of Joint Research on the Positive Health Effects of DENBA

・The University of Tokyo × ITOCHU Corporation: Study on human autonomic nervous system function

・Keio University: Study on freezing/thawing of human iPS cells and cardiomyocytes derived from them, and discussion on efficacy

・University of Tsukuba: Study on effects on cognitive and motor function in the elderly

・Azabu University: Research on stress reduction in pigs and improved efficiency in growth and reproduction

・Suwa University of Science × Teikyo University: Usefulness of DENBA Health for improving driving performance

・Kamijo Women's Clinic: Solution for infertility treatment

Research Example ①

【World First】The University of Tokyo: Demonstrated increased autonomic nervous system activity with DENBA technology

Through a joint study by DENBA JAPAN Co., Ltd., the University of Tokyo professors, and ITOCHU Corporation, it was confirmed that approximately 15 minutes of electric field application using DENBA technology enhances the activity of the autonomic nervous system (both the sympathetic and parasympathetic nervous systems).

【Test Procedure】

① 22 subjects aged 20–56 sat quietly on a chair equipped with a DENBA mat for 60 minutes.
② The DENBA power was switched on and off every 15 minutes, out of sight of the subjects.
③ During this period, heart rate variability (HRV) was analyzed based on RR intervals obtained from recorded ECGs.
④ The subjects did not notice the switching of the weak electric field associated with the DENBA on/off operation.
⑤ Nevertheless, the standard deviation of RR intervals and both low-frequency and high-frequency components from power spectral density were significantly increased during field exposure.
⑥ As low- and high-frequency components reflect sympathetic and parasympathetic activity, respectively, the weak electric field from DENBA is likely to enhance autonomic nervous system activity.
(September 27, 2022)

Research Example ②

Kamijo Women's Clinic: Solution for infertility treatment

A clinical study conducted jointly by DENBA JAPAN Co., Ltd. and Kamijo Women’s Clinic (Takasaki City, Gunma Prefecture) found that using DENBA minimizes damage to frozen–thawed embryos in infertility treatment and maximizes the inherent potential of the eggs.

At Kamijo Women’s Clinic, embryo culture and handling—including freezing and thawing—were performed under DENBA conditions, demonstrating minimal embryo cell damage and maximal utilization of each egg’s potential. While the national average in Japan for IVF embryo transfer resulted in a 21 % pregnancy rate and 15 % delivery rate, Kamijo Women’s Clinic achieved a 54 % pregnancy rate and 29 % delivery rate per embryo transfer using the DENBA spatial culture method. Even in frozen–thawed embryo transfers, pregnancy rates rose from 29.1 % to 38.5 % and delivery rates from 14.3 % to 22.0% after introducing DENBA.

*Kamijo Women’s Clinic, specializing in infertility treatment, presented these dramatic improvements in pregnancy and delivery rates for frozen–thawed embryos—achieved through culturing enhancements using DENBA technology—at the Japan Society for Reproductive Medicine meeting held on November 9–10, 2023.

Pregnancy and Birth Rates in Frozen-Thawed Embryo Transfers