In this post on emulsifiers, Toni asks: Can you see any reason that Lotionpro 165 should not be used as an emulsifier for emulsifier sugar scrub? I ran out of Polawax but I'm not sure if Lotionpro has limitations.
Lotionpro 165 (Lotioncrafter's name for it) or Simulsol 165 (same thing, found at Windy Point) is a great emulsifier for making light, fluffy lotions and body butters. It would be a great addition to an emulsified scrub and, honestly, I can't believe I haven't tried it yet. It's going on my to-do list now!
I haven't found an emulsifier that couldn't be used in one of my emulsified scrubs yet. Each one brings a different skin feel to the product - Incroquat BTMS-50 is a bit dry feeling while Rita BTMS-225 (same as Incroquat BTMS-25) feels a bit waxier - but they can all emulsify the oils enough to create an awesome product.
Okay, I should correct that. I don't think the new cold processed emulsifiers I've been using like Aristoflex AVC and Sepiplus 400 would do well in a scrub, but I haven't tried them to prove that yet. I know Sucragel AOF is terrible for this kind of product.
So the short answer is yes, try it and let us know how it goes!