⚠️ H#4 Tan/Brown Heroin: Critical Safety Alert Heroin (#4) is a highly addictive opioid drug, typically sold as a white or off-white powder in its purest form. Tan or brown heroin often indicates the presence of impurities, additives, or a different processing method (e.g., “black tar” heroin crushed into powder). This variation poses significant and immediate risks. Here’s [...]