Galnuts Powder (Majuphal) consists of dried galls found on Quercus infectoria tree (Fam. Fagaceae), a small tree or shrub, 2 to 5 meter high, native of Greece, Asia Minor, Syria, Persia and Iran. The galls are excrescences on the twigs, resulting from the puncture & deposit of an egg or eggs of an insect (Cynips gallae tinctoria) on the rudimentary leaves, buds of various species of oak. These are known as Oak galls & are generally imported into India. As per Ayurveda Majuphal is astringent, dry and light in nature; cool in potency and helps to pacify pitta & kapha. In Ayurveda it has been successfully used for controlling in intestinal problems, it support in healthy urine flow. Majuphal promotes antioxidant. As per Scientific study the Oak galls from Quercus infectoria contain the highest natural occurring level of tannin, approx. 50–70%; they also contain 2-4% each of gallic and ellagic acid.