Nutgall is a natural ingredient that is used in various applications such as dyeing, tanning, writing ink, and medicine. It is known for its high tannin content and has various synonyms such as Oak apple, Gallnut, Oak gall, Ink nut, and Gauro. Apart from these, it has other regional names like Mazari and Biblichor. Nutgall has numerous health benefits and is traditionally used in Ayurvedic medicine to treat conditions such as diarrhea, dysentery, and skin inflammation. In the cosmetic industry, nutgall is widely used for its astringent property, which helps in tightening and toning the skin. Overall, nutgall is a versatile ingredient with many synonyms and benefits.