PALM COAST, Fla. -- Deputies are searching for additional victims of a man they said has been illegally injecting people with industrial-grade silicone.

VIDEO: Deputies: Silicone Injected

Donnie Hendrix, 40, is not a licensed physician, but police said he has injected hundreds of people with silicone in the bedroom of his Palm Coast home.

Flagler County deputies said Hendrix's victims did not know he was using industrial silicone for procedures like breast implants lip injections.

"It's a liquid base. It's not contained into the body. It's injected into a liquid form and it can go through your blood stream," an investigator said.

Crime scene photos and video from Hendrix's home show the materials he used in the illegal operation, deputies said.

Detectives said Hendrix scheduled the operations months in advance, similar to a regular doctor's office.

Neighbors said they did not notice anything unusual.

"This is very dangerous. I heard about it for the first time. I couldn't believe it," a neighbor said.

Deputies said Hendrix has been in business for more than three years.

Investigators urged Hendrix's victims to come forward.

Hendrix has been charged with practicing medicine without a license and unlicensed practice of a health care profession. He is being held on $25,000 bond at the Flagler County Jail.

Hendrix served two years in prison in the 2001 death of a Broward woman. Deputies said the woman received silicone injections to her hips and died when her lungs filled with silicone. Hendrix was found guilty of operating without a license and culpable negligence and was released in 2005.