Actually, It would be preferred (as well as appreciated) to use the Search button before posting a thread or replying to posts. The topic of synthetic urine detection has been addressed and answered many times in the DT forum. And theres plenty of posts of individuals who have successfully used synthetics at Quest Diagnostics.
Using the Search button will be of big help in keeping the DT forum from being all cluttered up with multiple posts pertaining to the same topic.