Hong Kong police say they have raided a beauty salon and arrested 11 women, after customers accused it of offering fraudulent medical treatments.
Police said seven people spent HK$5m ($645,000; £444,000) on treatments reportedly involving oxygen inhalation and infrared light therapies.
The patients had to sign undertakings with the salon not to receive any other medical treatment, police added.
Local media report they had conditions including cancer and depression.
Police told the South China Morning Post that they were investigating whether the beauty salon was involved in the illegal practise of medicine.
Thursday’s raid comes just days after a massive public outcry after the death from cancer of a Chinese student who sought an experimental treatment at a hospital, after it came top of his search listing on internet search giant Baidu’s site. The company says it vets health advertising carefully.