How can I benefit from Henna without its red coloring in my hair?

I want to keep my black hair from the dye. Is there any natural way of doing it? I don't want black henna either.How can I benefit from Henna without its red coloring in my hair?
You can mix your henna with boiling liquid, then leave your henna in a hot place for several hours in a sealed container to exhaust the dye,then it will not leave color on your hair.How can I benefit from Henna without its red coloring in my hair?
I used to use something called neutral henna which is actually Cassia Obovata. It does not stain at all but makes your hair look thick, shiny and glossy. You mix it into a paste just like henna. Now that you've mentioned it, I'm also going to get some. The results were wonderful!