Add a handful of black tea leaves to it and allow it ... These are some of the best ways to use henna hair dye for gray hair. However, if used incorrectly, it is possible it won’t give you ...
It depends on the type of henna - brown is safe, while black 'henna' is definitely not safe. Semi-permanent vegetable dyes such as henna are recommended by the NHS as a safe alternative if you do not ...