This suggestion is to tell the truth directly, that is, to seek truth from facts. This is not a foul. After all, cosmetics are used on the face, for customers and for their own reputation. This is telling the truth. Otherwise, you lied, the customer got it, and then his face became allergic, or something bad happened. It's not good for you and your customers to give you bad reviews and apply for Pinduoduo platform intervention. You should tell the truth directly.