So I bought my own box of natural instincts hair color from rite aid 3 months ago. I never got to dying my hair and now its too late to return the hair dye. I thought about mixing the hair dye with another brand of hair dye, and then was told that's dangerous because you don't know what the base of natural instincts is, which I guess mixing two different bases can give you a funky color. How can I find out the base of my natural instincts hair dye? I looked on the clairol website, nothing came I'm. I'm thinking clairol is hiding it. Help?

Why do you need to mix two boxes? Why don't you go to the store and buy another box exactly the same you have now?