Is it okay to use Tianqidan at night and tst for skin care during the day?

Of course. Tianqidan can only be used at night. If used in daytime, it will cause sunburn and allergic reaction. Tst frozen film can be used in the morning and evening. If you use it during the day, wait until it is fully absorbed before cleaning, and then follow up skin care. TST, the full name of TINSECRET, is a brand of Shanghai Dalway Trading Co., Ltd., which mainly focuses on cosmetics and skin care products.