Crystal methamphetamine, or ice, is a form of methamphetamine that produces a more powerful and longer lasting psychological reaction than that ingested in powdered form. smoked in a glass pipe or injected, this form may result in a "high" lasting up to hours.

Crystal methamphetamine or ice may result in a "high" lasting up to 12 hours if injected or smoked in a glass pipe.

Crystal meth is a highly addictive and strong drug which affects the central nervous system. Crystal meth has no legal use. Its appearance may be blue-white rocks or clear crystal chunks.