time could be increased.
if the hair is somewhat dry, the mask can dry a bit at the ends of the hair. in that case i advise you to apply on the roots the mustard mask, and on the ends, your favorite hair oil, then nothing will be dried.
be careful when you wash off the mask! it is, though, washed away very quickly, but the contact with the eyes is not very nice.
the owners of a sensitive scalp, i would not advise such a mask or it is worth trying it on a small area.
after the first application the hair stopped falling out! if i was told by someone, i would 