Introduction to white fish maw: White fish maw is taken from the swim bladder of the precious small fish "Huanggu", which is generally very small. The fish belongs to the class Teleost, order Perciformes, family Totoidae, and genus Huang. Its swim bladder has the ability to produce sounds. The fish maw made by drying is what we call white fish maw. White fish maw is also called white lotus fish maw, white fish maw, and white fish maw from some producing areas is also called Xiwo, Hongwo, etc. It is one of the top varieties of isinglass.

The functional value of white fish maw: White fish maw is known as the "crown of fish maws". It has first-class efficacy and taste. It has the functions of strengthening the body and nourishing the body, nourishing the blood, nourishing the liver and kidneys, etc. It has the functions of nourishing the skin, resisting wrinkles, and beautifying the skin. The effect is very good, even better than ordinary red-mouthed fish maw. It has always been a luxury product for Hong Kong people to maintain their beauty.