Yes it works. You only need 1 bottle. If the lab tech says they need more than 60 cc's they are messing with you. If you came out of the bathroom with a 60 cc sample they have to accept 60 cc's. Some techs know about quick fix and will try to scare people by asking for more but they have to accept a 60 cc sample. A split sample (two vials of urine an A and B sample) only requires 30 and 15 cc. They can do two 30 cc samples if they chose to but no more. This is from a person who owns a collection site.