1. Fish maw is better. In terms of beauty, fish maw is relatively better than bird's nest, because fish maw is rich in collagen. Proper consumption of fish maw can supplement more collagen than bird's nest. Protein and collagen are important substances for maintaining skin elasticity.

2. Therefore, eating fish maw can help promote the skin to become more elastic, and also help to make the skin in better condition, reduce the loss of skin moisture, and help slow down the rate of skin sagging.