Its already well-known how it really "works" and how well. It "works" by diluting your urine so the sample tests negative. The same thing can be accomplished by simply drinking water, gatorade, or any other fluids.

Because Sonne "works" by diluting, a person can still fail if their THC metabolite concentration is too high. For most longtime daily users, its virtually impossible to dilute without overdiluting and sending up the red flags at the lab.