Addiction represents perhaps the ultimate challenge for behaviour change campaigns. By definition, these are compulsions that override rational thought, resist willpower, and devastate lives despite people knowing the consequences. If creative advertising can make a dent in this territory, it proves the medium’s power to save lives.

Here are four campaigns that rise to that extraordinary challenge.

The Harris Project – You Don’t Know The Half Of It

A potentially difficult message—the co-existence of substance abuse and mental health issues—is handled with remarkable skill by The Harris Project. This is how you talk about addiction without reducing people to their illness.

Partnership for a Drug-Free America – Brain on Drugs

This anti-heroin advertisement became so culturally embedded that it spawned countless parodies and alternative versions – decades before “going viral” was even a concept.

Thai Health Promotion Foundation – Smoking Kid

Pure genius built on extraordinary insight. Simple, devastating, brilliant.

Montana Meth Project – Not Even Once

Whilst the “Just Say No” campaign offered empty sloganeering, Montana Meth Project showed the brutal reality of methamphetamine addiction with unflinching honesty. Their “Not Even Once” series doesn’t lecture or moralise—it simply shows how quickly and completely meth destroys lives. The shock value serves the truth rather than replacing it.

Hope is a marketing, creative and branding agency for charities and other social-purpose organisations. The Ideas Lab examines what makes effective (or ineffective) communications for these causes, charities and social-impact businesses.