it didn’t clean my system of THC. I was offered an excellent, 6 figure job contingent on me passing a background check (No Problem) & a toxin screen. I’m a medical MJ card holder, and have been using Cannabis for over 30 years. I had a month until I needed to take the experimentation, when I got my 7 Day Toxin Rid (Shipping took a week, why I don’t know, they could easily use USPS Priority Mail for much cheaper & 2-3 days delivery), I had stopped smoking for 3 weeks already. I also ordered on recommendation the Extra Clean drink. I followed the directions & used my home experimentations to watch any progress. By the 7th day & a day before my experimentation, I was still coming up positive for THC. I had no choice but to substitute my urine with Sub-Solution (Great Product), there was no way I was taking the UA hot, didn’t care about the refund, I’d rather have the job. The detox did clean me out, as I had great bowel movements everyday while using. It may work for some, but for longtime users you may just have to sub.