One needs to be really careful with copper; I myself, would be glad for the paper towels when zapping. Colloidal copper, is something I'm not familiar with. I know that the body is very sensitive to copper; too little can cause illness, too much can cause serious (biochemical) disbiosis and serious illness. I believe it's considered a trace mineral in the body.
It's probably best to have a mineral panel run that includes copper, just to make sure. Then again, COLLOIDAL copper may be different. Best to keep checking out your question until you know for sure. If my guess is right, copper is very yang, hence the red/orange color. In time and in abundance, copper should affect the right side of the body, holding to the tenets of yin/yang balance.