HazMat ingredients are ingredients that are for one or more reasons hazardous. Such hazards can include corrosive, oxidizing, or flammable properties and require you to take appropriate precautions when using such ingredients. Purchase of these items, requires you to agree to the Hazardous Materials Waiver which will be provided electronically upon check out. The transport of HazMat ingredients is strictly regulated by the DOT (Dept. of Transportation) and IATA (International Air Transport Association), both domestic and international shipping requires special packaging, labeling, and documentation. Additional surcharges may apply when ordering larger quantities. At this time HazMat items will be shipped via UPS Ground only within the US (excluding Alaska and Hawaii).