My hair is med/dark brown. I am currently using Garnier med. dark blonde #70 to cover grey and it is close to my natural color, except it has red highlights. This is the closest color I have been able to find to my natural color. Which Ecocolor would you suggest that wouldn't be too red? Also can you tell me if the color you suggest has ppd in it. I'm changing from standard hair dyes to a more natural alternative to avoid ppd. Thanks!