In 1938, Mann et al. first isolated a copper-containing blue-green protein from calf blood. A similar protein was isolated from horse liver in 1953, but it was not found to be biologically active. It wasn't until 1968 that American mike DE, under the direction of Fred, extracted red blood cells from cattle and designated them superoxide dismutase, or SOD.

After decades of research by scientists, it has been found that the physiological functions of SOD mainly include:

1. Remove excessive free radicals in the body and delay aging, such as skin aging and senile age spots.

2. Improve the body's resistance to smoke, radiation, toxic chemicals and toxic chemicals, and strengthen the body's defense against the outside world.

3. SOD is effective in treating bone marrow injury.

4. SOD is effective in treating autoimmune diseases.

5. Eliminate fatigue and increase adaptability to large amount of exercise overload.

SOD is abundant in the blood of young people. After people are over 25 years old, the production rate of SOD in human body declines gradually with the aging of tissues, so the low SOD residual rate in human body will lead to various diseases. In addition, some causes may cause the body to produce too many free radicals, such as: 1. 2. Smoking; 3. Intense sports; 4. Pesticide pollution; 5. Ultraviolet radiation; 6. Radiation exposure; 7. Excessive drinking; 8. Food additives; 9. Pharmaceuticals; 10. Air pollution, etc.