Bread-Bakers v098.n069.6

Is vital wheat gluten the same thing as gluten flour?

I apologize in advance since I'm sure this question has been discussed here
in the past [and I just didn't pay attention]...I have always added gluten
flour to certain recipes [primarily to rye breads]; I haven't bought any
for some time and can no longer find it locally.  I HAVE found vital wheat
gluten and want to know if it is, in fact, gluten flour.  

TIA,

Mura