A campaign launched by Rehabs.com called "More Than Meth: The Faces of Drug Arrests," aims to show the horrific effects that drugs can have on addicts.

The photos are mugshots of the drug users, taken at the times of various arrests, and in some cases span years.

The shocking pics show the physical effects of drug abuse, including weight loss or weight gain, tooth decay, facial sores, abscesses, and premature aging. 

Check out the before-and-after mugshots from "The Faces of Drug Arrests" up top, plus additional mugshots which reveal the devastating physical toll of drugs.

Source: dailymail.co.uk