The plant is commonly found in China and India in dry and arid conditions, especially the sandy desserts. The seeds contain essential oil, a nonvolatile terpenoid oil, a pigment, a resin, fixed oil, raffinose, two coumarin compounds viz., psoralen and isopsoralen, psoralidin, corylifolean, isopsoralidin; and the most active ingredient is psoralin alkaloid. It is very useful in hypopigmented lesions of the skin like leucoderma and psoriasis as it contains
It is very useful in hypopigmented lesions of the skin like leucoderma and psoriasis as it contains
