Bird's nest mainly contains water-soluble amino acids such as protein and glycine. Bird's nest also contains collagen and minerals, so it is also used in various beauty cosmetics.

In fact, the nutritional value of Rana chensinensis and bird's nest in China is better, but in comparison, the value of bird's nest is higher, especially for women, bird's nest can be said to be a natural beauty beauty product, but we should pay attention to the correct choice of bird's nest, because there are more inferior products now.

Identification of true and false bird's nest

1, the denser the fiber, the better: the color is transparent, yellowish, shiny and smells like bird's nest. The fibers on the bird's nest should be clearly visible, with clear texture and different thicknesses. The greater the density, the better. The filaments inside the bird's nest are messy and loose.

2, beware of paint processing: high-quality bird's nest is mostly plucked, and there are obvious gaps between the wires. Although the denser the bird's nest, the better, but it is definitely not airtight. The painted bird's nest has a reflective and dense surface. It not only affects the quality, but also increases the weight of bird's nest.

3, rough appearance: if you choose a completely dry bird's nest cup, you will feel that the bird's nest cup is rough, and it is particularly brittle, making a sound and easy to break, while the surface of the processed bird's nest is coated with substances, dry and thick, but the skin is dry and the meat is not dry.

4. Different colors: Because each swallow eats different foods, their saliva color will be different, so the color on each bird's nest is also different.