N-Acetylneuraminic, a new raw material No. 001, is a key component of human cell membrane and the core value of bird's nest. At present, 30+ patents have been applied for. The product has reached 98% pure concentration. It can 150% improve the formation of type I collagen at 0.2% low concentration, and 100% reduce the activity of tyrosine hydroxylase and dopa hydroxylase. It is a highly effective ingredient of cosmetics and food, and also a Chinese ingredient with independent intellectual property rights!