The Microneedle Therapy System has been hailed by many in the beauty industry as a short cut to younger-looking skin - so it is little surprise that it has taken image-conscious Hong Kong by storm.
A warning was issued about the treatment following a series of serious complaints.
The procedure, which is not for the faint-hearted, involves the face being covered with topical anaesthetic before it is massaged a needle-studded roller - a process believed to improve collagen-production.
Though many have raved about impressive results, there was report of bad reactions to the microneedle, such as deteriorating skin condition.
It said that there was no scientific basis to the treatment, and warned that the device was potentially lethal.
Although beauty salons takes the efforts to sterilise the Microneedle rollers between clients were often inadequate, posing risks such as HIV and hepatitis.
Publicity and community relations officer Philip Leung Kwong-hon told the South China Morning Post: 'It is unwise to risk your life for a prettier appearance.'
But beauty salons offering the treatment say that the warning is unlikely to affect demand, which continues to be strong.
Samantha Ku Ka-yin, of Hong Kong's Miss Beauty spa, told the city's The Standard newspaper: 'If people want to improve the appearance of their skin they will not care about [the warning].'
She added that at her spa, a new roller was used for every client.
The Microneedle Therapy System, which is sometimes known as a Dermaroller, soared in popularity after it featured on the Rachel Ray show earlier this year.
Its makers claim that the tiny wounds created by the roller stimulate collagen production and enhance the natural blood supply, leaving the face with a healthy glow and more youthful complexion.
One of the celebrity fans is believed to include Jennifer Aniston.
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