Are there non-toxic dyes for your hair?

Are there non-toxic dyes for your hair?

There are non-toxic hair dyes that one can use. They tend to be rather limiting. Henna for example is one non-toxic die, but in order to have a pure henna it is bright red. In order to have the browns in henna you actually have metal salts within those, so they can't actually say that they are non-toxic, though they are arguably less toxic perhaps then the chemical dyes. Having said that, chemical dyes prove to be extremely successful and providing instructions are followed, particularly where skin testing is suggested by the manufacturer, there is no harm in using chemical dyes to colour hair.