Welcome to 3fc!
I've never heard of Luzianne smoothies, so I was curious about this

I checked their website and the mix doesn't contain any fiber. It's unlikely you'll get any fiber from juice, either. So the point value should be 3 points for 2 Tbsp mix and 1/2 cup juice.
If you like to make your smoothies from scratch, we have a lot of smoothie recipes on site, and each include point values.
http://www.3fatchicks.com/cookbook/l...ie-recipes.php
Hope this helps!