: Carry industrial-grade PG for solar heating or boiler systems. Choosing the Right Grade

Buying the wrong "type" of propylene glycol can be dangerous or ruin your product. Always check the label for these certifications:

For DIY projects like soap making, skincare, or cigar humidors, online retailers offer the most convenience.

While rarer on standard store shelves, you can sometimes find PG locally:

: Sites like Bulk Apothecary or The Chemistry Store are excellent for high-purity USP grade liquid. 2. Specialized Chemical Suppliers (Best for Bulk)