Colour: It is black.
Taste: Black bol is bitter.
Structure: Black bol is prepared of the juice of aloe vera.
Nature: It is cool in nature.
Precautions: Over quantity of it may be harmful for the cool and calm natured persons.
Removing side effects: Jiggery (gur) and raisins remove its all side effects.
Comparison: It can be compared with the pulp of aloe vera.
Dose: It is taken in the number of 4 pieces.
Quality: Black bol is purgative and anodyne. It gets rid of flatulence and eliminates vatta and kapha. Take it to destroy worms and its use provides relief in colic pain. It is also used for the treatment of those diseases caused by excessive quantity of mercury in the body.