Mace for female defense

[echoes]

Greetings. I hope it is okay to ask this question...I have searched some forums with this key-word...and none had any specific information?
i.e. http://www.professionalsoldiers.com/...highlight=mace

Since I have been looking on the net, have found tons of Mace links, with all sorts of reviews. Would anyone here have a tip to a favorite for the females in their 6?

Thank You,

Holly