Charges against a Chinese woman over an alleged botched breast surgery that led to the death of a Sydney beauty clinic manager have been upgraded to manslaughter.

Jean Huang, 35, died after a a botched cosmetic procedure at a clinic she managed in Sydney. ( Supplied: Facebook )

Jean Huang, 35, underwent the procedure at the Medi Beauty Clinic in Chippendale last week and died at the Royal Prince Alfred Hospital on Friday.

Prosecutors said Chinese tourist, Jie Shao, 33, administered a local anaesthetic and breast filler to Ms Huang, despite having no medical qualifications in Australia.

Court documents listed the drugs involved in the botched surgery.

"Jie Shao on the 30th of August at Chippendale … did cause the death of Jean Huang in circumstances amounting to manslaughter, injected Jean Huang with varying amounts of anaesthetic in the form of Tramadol and Lidocaine and the restricted substance Hyaluronic acid," court documents said.

Tramadol is an opioid pain medication

Tramadol is an opioid pain medication Lidocaine, also known as lignocaine, is used as a pain reliever in dental surgery or for changing an abnormal heart beat, according to NPS Medicines Wise

Lidocaine, also known as lignocaine, is used as a pain reliever in dental surgery or for changing an abnormal heart beat, according to NPS Medicines Wise Hyaluronic acid has many uses including as a lip or breast filler in plastic surgery

Health Department inspectors are investigating where the shop received the anaesthetic used in the procedure.

Accused considered a flight risk

Jie was not required to appear at the Central Local Court in Sydney when a charge of manslaughter was added.

She was initially charged with recklessly inflicting grievous bodily harm and using poison to endanger life before Ms Huang died and she is still facing those alongside the manslaughter charge.

The Chinese tourist remains in jail with bail refused because a magistrate deemed her a flight risk.

She is due to face court again next month when she will be required to appear via video link.