Hi what is the heter for the wrigleys gum please
Heter for what?
You said its kosher but there is no hechsher and it might have glycerin
But if it is a by product of an animal why is it ok? Also what about the flavors that might be a problem are there certain ones that are a problem?
Please search through this site. There are many discussions on this topic.
One of the great poskim of the last century, Rav Chaim Ozer Grodzinsky, zt”l ( Achiezer III: 33), permitted using gelatin.
And what about regarding the kashrus of the flavors
Please read through this forum. Your questions a great but they have all been answered already multiple times on this website.