Colour Extend Injection in Copper Gold [DISCONTINUED]

i dye my hair auburn (revlon colorsilk medium auburn to be exact) and my hair was pretty much washed out (back to its mousy brown) and due for a redye, but i didnt feel like dying it at the moment....

There are other reviews for this in red, which I haven't tried yet. I chose the copper gold because I thought red sounded a bit too fierce. I have naturally red hair that has faded to strawberry...