Propylene Glycol USP - Food Grade Glycol - Propylene Glycol Food Grade - Propylene Glycol USP Grade - 32 oz - $1,000,000 quality product insurance Propylene Glycol USP - 32 oz Packaged in conformance to USP regulations in a USP packaged approved facility. $1,000,000 product quality insurance. Shipped direct from ChemWorld's packaging facility to Amazon fulfillment. Do not be fooled by others on Amazon selling product is has not been final packaged to USP regulations.