GO has no side effects because it works according to a principle that is very similar to what nature itself provides spontaneously in the form of quantum particles (solar photons, waves from the planet's magnetic field, cosmic rays, etc) without which man could not survive.

This makes GO perfectly safe and usable by anyone who wants a better quality of life.

The frequency of using GO is based on individual sensitiveness. However, it is important to avoid overusing GO and to limit its application to six times a day.