I will try to get you the name on Monday, but a few caveats.
1. Costco works on a cost-effective basis, if it doesn't fly at any given store, they won't order/reorder it.
2. There seems to be great variety on what is available in any given area. e.g. Karen (I think) mentioned a protein powder in Costco that has almost 0 carbs. Not availabel at the Costco here.

TTYL, and good luck!

Kipling