The main components of bird's nest are: water-soluble protein and carbohydrates; Trace elements: calcium, phosphorus, iron, sodium, potassium and amino acids that play an important role in promoting human vitality. Bird's nest is rich in minerals, active proteins and collagen, among which epidermal growth factor and water extract can strongly stimulate cell regeneration, division and tissue reconstruction. Bird's Nest is a filamentous substance secreted by Jin Siyan, which contains sialic acid, also known as bird's nest acid, which can enhance immunity and prevent bacteria from attaching to respiratory mucosa. Bird's nest is a healthy and nutritious food, which can be eaten by both men and women. Bird's nest contains three different nutrients, among which sialic acid (N- acetylEuropean acid), epidermal growth factor (EGF) and colony stimulating factor (CSF) are the most special. Bird's nest is a pure natural nourishing health food. Its main function is that sialic acid contained in bird's nest, also known as bird's nest acid, can enhance immunity, make bacteria not easy to attach to respiratory mucosa, and heal and repair damaged cells. The unique substance in bird's nest can repair the living cells of the body. Bird's nest can repair living cells of skin and nourish dermis. There are two kinds of protein in the dermis of the skin: collagen and elastin, which support the skin and make it full and firm. The effective substances in bird's nest can really make the skin tender and smooth, and have the effect of lifting and firming. Traditional Chinese medicine believes that bird's nest: "nourishing yin and moistening dryness, benefiting qi and tonifying the middle warmer, treating physical weakness, expectoration and asthma, hemoptysis and chronic dysentery, suitable for patients with physical weakness, malnutrition, chronic dysentery, cough with excessive phlegm, chronic bronchitis, bronchiectasis, emphysema, tuberculosis, hemoptysis and vomiting blood, stomachache, etc." Modern medicine has found that bird's nest can promote immune function, delay human aging and prolong life.