I'm looking for herbs that are good for dark hair and one that I see regularly is nettle. When I looked online to purchase some there are three options. Nettle leaf, Nettle leaf powder and nettle root powder. Does anyone know which would be better? So far I'm leaning more towards the nettle leaf, it would be less gunky and if I'm using rosemary and sage that are not powders it seems like it might mesh better?