Ammonia Free hair color

Saving 50% on hair color created quite a buzz. There are several ammonia free brands out there but to answer your question, I use Clairol Natural Instincts. Being a newbie on the hair coloring scene, I can't say it's better than other brands. It just happens to be the one I found, I tried it and it seems to serve its purpose. If any of you with more experience have some suggestions, please pass them along.