If all its products have CFDA certification, there will be basic security.
The user's feeling is the most intuitive, and you can see the effect of an online use. Now there are too many cinema brands. People who really understand this piece and do nursing will basically choose Japanese and Korean cinema products.
After getting the baby, you can carefully compare it with the collagen bought in the beauty salon to see if it is the same. If you are still not at ease, enter the security code to verify whether it is genuine.