1.As pharmaceutical raw materials for clearing heat, anti-inflammation and so on, it is mainly used in pharmaceutical field;
2.As the raw material of product for benefiting stomach, increasing energy and boosting the immunity, , widely used in health industry;
3.Applied in food field, it can be produced into wine, canned, condensed juice and other more nourishment;
4.As active ingredients of skin care products, it is mainly used in cosmetic industry.
Gallnut extract powder seems to have anti-fungal and anti-viral properties. Gallic acid acts as a antioxidant and helps to protect our cells against oxidative damage. Gallic acid was found to show cytotoxicity against cancer cells, without harming healthy cells. Gallic acid is used a remote astringent in cases of internal haemorrhage. Gallic acid is also used to treat albuminuria and diabetes. Some ointment to treat psoriasis and external haemorrhoids contain gallic acid.