Hi,
As perhttp ://www.interhealthusa.com/Ingredients/L-OptiZinc.aspx
Optizinc zinc complexed with L-methionine, doesn't hinder copper absorption .

It is not the uptake into the body that is the problem.

The issue is that if they balance of zinc to copper within the body becomes too high, it will block the actions of the copper. Many people take large amounts of zinc and this may be why so many 30ish people have gray hair today.