Cuprous nicotinic acid chelate, Cu(I)NA2 is the world’s first copper supplement in the +1 oxidation state. This site reviews the importance of copper in blood flow in muscles and some thought provoking and unexpected results. This site is growing out of control. Some of the stuff is general information about the benefits of copper. 
BDLbiochem is the other half of this effort. Dr Barbara Leinweber PhD. This site is purely educational. The reader is invited to perform his or her own Internet searches for the best cuprous or Copper One supplement.
Cuprous niacin 