Probably best to understand the ‘lifestyle’ that becomes heroin addiction, a vicious cycle of misery and heartache, usually ending in death.
The more one knows, the less they’ll be interested in ‘discovering’ heroin, ever.
“Black Tar Heroin: The Dark End of the Street is a 1999 documentary directed by Steven Okazaki. Filmed from 1995 to 1998 in the Tenderloin, San Francisco, California, the documentary describes the lives of heroin addicts.”