When is the best time to take, H2O FX, a natural dieretic, before comp?

[Stan Ozolol]

When is the best time to take a product like, H2O FX, a natural dieretic, before competion for best results?
I was told it gets all the water out of your body and gets you more hard cut look, especially is you are already have low bf and r lean.
Need your comments-

 

[Stan Ozolol]

b u m p