Awasome Henna Hair Color For Gray Hair Ideas. 1 cup filtered warm water. Web henna can dye all hair types and shades, but the end color really does depend on the person's natural hair color and whether or not they have any grays, says carryl.
Henna gradually fades out over time. However, the results depend on the natural color of your hair. Apply to a section of hair about half an inch wide (including twinkly grey hairs if you have any).
