When was the first advertisement of Yayue broadcast?

Yayale toothpaste is a new product launched by Nais Group in March 20 16. This product has been repeatedly studied and tested by Nais Experimental Department for many years, and it has been well received by our customers once it is put on the market. Because the material is safe to use, children accidentally eat it when brushing their teeth, and it will not affect their health. So in Lishui, toothpaste used by customers and children at home is the first choice.