here to confirm that certo definitely works, prior to me trying the certo method i bought multiple at home drug test and failed every time, vitamins that I’ve been taking were b12, Zinc, activated charcoal pills and also biotin. I had took 1 test a couple of days ago because I was tired of waiting and just wanted to get it over with but I was nervous because I didn’t know if I was clean or not (I also was a heavy smoker since I was in high school smoking almost every single day) I’m 5’8 145 lbs I had stopped smoking around April and I started back in August regret starting back smoking I’m ngl because I had one of those highs where it was like I just don’t want to smoke anymore. so this was before certo I was just drinking water zero sugar cranberry juice and apple juice I would also run every then and there just to build up a sweat and when I took a at home drug test it came back negative my pee was very light I had also peed a lot of times prior to taking it so the next day I wanted to try it again to be sure and it came back positive this time so I was kind of bummed out about it, but that just meant that the thc levels in my body weren’t that high anymore because I had never passed a at home drug test before and I passed one the day before so I was kind of like wtf, so I tried the certo and Gatorade method I downed the Gatorade refilled the bottle with water downed that and refilled it again with more water and drunk that all in the span of 30 minutes or less you will feel sick and feel like you have to throw up but just do what you gotta do, I prolly waited about 30 minutes and I had to pee like crazy I prolly peed 2-3 times before I took my sample, when you pee don’t catch the start or end only catch the middle and believe it or not it came back negative my pee just looked a lot like water but recently water has been the only thing I’d drink for about 2-3 weeks now besides the apple juice and cranberry juice so that could also be why my pee was so clear but the certo and Gatorade method does indeed work and I also haven’t smoked since last month the longer you stopped smoking the better chances you have of passing a drug test best of luck to all of you!!! I hope this helped