BUY 2 FOR $35. Type in 2Coppers to the Promotion Code @ Checkout!; THE PARTICLE SIZE IS 125 nano meters. Because of the size of particle, it is able to pass the brain barrier.;COPPER HAS MANY IMPORTANT roles and supports the healthy cartilage and tendon regeneration, promotes healthy skin and helps assist the body in the absorption of Iron.;COPPER MAY ASSIST in the functions as an antioxidant. Copper is also necessary for normal iron metabolism and red blood cell formation.;CLICK ADD TO CART NOW! Highest quality of pure Nano sized Colloidal Copper. Only The BEST!