Everyone's at it in Tinseltown: Gerri Halliwell is an avid fan, Britney Spears and Lindsey Lohan reportedly can't live without it, Cindy Crawford attributes her ageless looks to it and even Margaret Thatcher is said to have tried it.
Vitamin injections - which are claimed to treat everything from flagging energy levels and obesity to ageing - have been a hot therapy in the US for some time and are becoming increasingly popular in Hong Kong.
But whether vitamin jabs are really beneficial to healthy people is still uncertain. Most experts agree eating a wide range of fruit and vegetables will provide the vast majority of the vitamins and minerals we need. According to them, it's fine to supplement these foods with oral multivitamins or folic acid supplements, but there's apparently no need for a healthy person to inject vitamins.
'Vitamin injections are meant for treatment of specific vitamin deficiencies only. This is rare as a lot of processed foods already have various vitamins added,' says Michael Cheng, a doctor at the Premier Medical Centre in Central.
So the obvious question is, why are more and more people injecting their vitamins?
Mandy D'Abo, owner of the Cat Street Gallery on Hollywood Road, had her first vitamin B12 injection to counter overwhelming fatigue.