I would call the manufacturer and ask them if it is body safe. I am guessing it is not rated as body safe and would not use it. It is made for thickening paint. I would contact Ashland who appears to be the manufacturer of the product. http://www.ashland.com/contactIs Natrosol B safe to use on the skin. That is what I used, it came out very thick but kind of has a little bit of tapioca look to it. Not sure if I should throw this away or use it for something else.
I actually contacted the person I purchased it from and they don't even realize there are different grades. Sad that people are selling stuff and don't even know what they are for.