This book explains different varities of medicine made by variety of herbs.

Henna has been proven to increase the strength of the hair and therefore represents a safe dye that doesn’t permanently affect the health of our follicles.  Henna helps seal the hair cuticle,  prevents breaking and increases the shine and appearance of the hair.  Henna inhibits hair loss and baldness.  The traditional mixture for this is putting henna juice or oil into curds and then mixing this into your hair as this increase the effect of the treatment.  Henna oil has been directly linked to alleviating certain sleep disorders, so if you are suffering from insomnia or chronic restless,  adding a bit of henna oil to your herbal regimen can get you back into a regular,  restful schedule of sleep.