Benefit: Snow Swallow is a precious plant wood pith secretion, a new type of nourishment. It is named Snow Swallow because of its resemblance to bird's nest after soaking. It has the ability to hydrate and moisturize, reduce fat and moisten the intestines, improve the body's immunity, enhance - collagen growth rate, make the skin plump, firm and elastic. Serving method: Soak 4 grams of snow swiftlets in water for 10 hours (if the swiftlets are large, you may need to soak them for longer), after they are fully soaked, they will turn into long, golden and transparent shreds like bird's nest.