Six-faced is ascribed to Kartikeya. A few ascribe to Lord Ganesha
both were sons of Lord Shiva.
The male should use on right arm. It's especially useful to attain
siddhi and success in business etc. The students should use this.
It is also useful for hysteria, fainting fits and other diseases of
ladies. It is used for affliction of Venus.
MANTRA FOR WEARING - AUM Hrim Hum Namha Shivaaya