1, Yangshengtang and Zimeitang are two different beauty brands. The collagen price of Yangshengtang is 237 yuan/bottle, while that of Zimeitang is 500 yuan/bottle, and the collagen price of Yangshengtang is lower.

2. Yangshengtang collagen has no irritating ingredients and can be used by people of all skin types, while Zimeitang collagen contains irritating whitening ingredients and can only be used by a small number of people.