After using Natural Instincts hair color (natural color brown with a lot of salt and pepper) and then using Loving Care my hair has a green tint to it. What can I do to get it back to the natural color?

You might take a look in the hair color section at the drug store or Walmart. When I had a similar problem I got haircolor remover and it worked fairly well.

If that doesn't work for you, I'd advise going to the beauty shop for some color correction.