You can buy mineral oil at , and through online retailers . The best place to buy it often depends on what you intend to use it for, as the purity and labeling vary by department. Where to Buy by Use Case For Food Surfaces (Cutting Boards & Butcher Blocks):
Amazon and eBay offer quantities ranging from small bottles to 5-gallon drums. where do i buy mineral oil
HOWARD 355mL Butcher Block & Cutting Board Oil | Home Hardware Home Hardware You can buy mineral oil at , and through online retailers
Baby oil is primarily mineral oil but often contains fragrances or Vitamin E; check the label if you have sensitive skin. For Bulk or Industrial Use: HOWARD 355mL Butcher Block & Cutting Board Oil
Look in the laxative or first aid aisle for "USP Mineral Oil" or "Liquid Petrolatum". This is high-purity, food-safe oil and is often the most affordable option.