Since the first outlet was opened in Katong in 2003, the number of customers who drop by daily for a turn on the massage machine, Ceragem Master, has doubled to about 400 at each of the three branches.

Customers using the Emtech PZ100 machine have also increased - from about 20 people per day in 2006 to 200 now at each of the five outlets.

Read Esther Tan's full story in Friday's edition of The Straits Times.