− | Among all varieties of oils, sesame oil is considered the best and is ideal for giving strength and unctuousness. Castor oil is the best for virechana (purgation). It is pungent, ushna virya (hot potency), alleviates vitiated vata and kapha, guru (dense, viscous or heavy) in nature and when used with astringent, sweet, bitter drugs it also helps mitigate aggrevated pitta. [12] | + | Among all varieties of oils, sesame oil is considered the best and is ideal for giving strength and unctuousness. Castor oil is the best for ''virechana'' (purgation). It is pungent, ''ushna virya'' (hot potency), alleviates vitiated ''vata'' and ''kapha'', ''guru'' (dense, viscous or heavy) in nature and when used with astringent, sweet, bitter drugs it also helps mitigate aggrevated ''pitta''. [12] |