Conditioner that darkens hair?

reallyageek

I have medium brown hair that I would like to be darker. Is there a good conditioner/shampoo that can do this? I've tried natural stuff like black tea rinses and they don't do anything. And I don't want to flat out dye my hair.

Blueblood

There are conditioners in drug stores that are for dyed hair that may work on your hair. They work by leaving some colour molecules on your hair shaft.

The ingredients won't be curly girl friendly.

I can't recommend a brand because I don't dye my hair shades of brown. I know the big brands e.g. l'oreal make them for other shades.