Police seized numerous illegal drugs and drug paraphernalia after raiding a Lihue smoke shop Monday morning.
Police say the synthetic drugs are often marketed to youth, and are commonly found in smoke shops or on the Internet.
They say the drugs are just as dangerous as the drugs they mimic.
Violent cases involving the synthetic drug use have been noted around the U.S. and here in Hawaii.
The DEA has set up a website to help parents and guardians identify illegal drug usage.