its made from the dried, unripe seed of the Piper Nigrum plant, which grows in India, The perennial plant may reach 20 feet in height and has a woody stem, broad ovate leaves, and small white flowers. The berries, which are red when ripe, are harvested just before they ripen and dried in the sun. Black pepper oil can be used to help in the treatment of pain relief, rheumatism, chills, flu, colds, increase circulation, exhaustion, muscular aches, physical and emotional coldness, nerve tonic and fevers.