Covering gray hair- Natural Instincts or other products?

I now MUST do something about my grays.

So...if anyone uses anything temporary, what do you use? I like my natural color and also don't want to get into dealing with roots. I don't mind doing it over every month or so. I'm thinking Natural Instincts but are there other products to check out? Because I'm blond the gray is not SO obvious but I want to do something about it.

Re: Covering gray hair- Natural Instincts or other products?

Natural Instincts does NOT do a good job at covering gray, in my experience. Not sure about other temporary products-- I do mostly permanent color.