Which powder is sometimes used to cut cocaine?

The use of cornstarch as a cutting agent for cocaine is well-documented in illicit drug trade. Cornstarch is a common substance due to its availability and ability to mimic the appearance of cocaine. It serves several functions; primarily, it increases the bulk of the drug, allowing dealers to maximize profits by stretching their supply. Additionally, cornstarch is relatively inert, meaning it doesn't significantly alter the effects of the cocaine itself, making it a less risky choice for those involved in the drug trade.

In contrast, other substances listed may not be ideal for cutting cocaine. Gypsum, a mineral, lacks the properties sought by drug traffickers and could potentially introduce harmful effects. Powdered sugar, while it might be used, can lead to undesirable clumping and might alter the intended effects more drastically than cornstarch. Charcoal does not serve a useful purpose as a cutting agent and could introduce health risks if ingested. Thus, cornstarch remains one of the most common choices for adulterating cocaine in the marketplace.