Exactly one week ago from today, I had to take a pre-employment urine test @ a local urgent care facility. My sample was sent to a lab halfway across the country. I used Quick Fix 6.1 that I bought from a local head shop. Days before I had the screening, I was researching nonstop if Quick Fix synthetic urine would pass a LAB test. I knew from experience, that Quick Fix passes a normal day-to-day dipstick test; every time. I didn't however know if it would pass in a lab. I've heard all different things about lab tests. And it is true that labs can and will test for synthetic anything. So I was definitely nervous, this being a great company I was applying for and all. I just got my results back today (5/13/16) and it PASSED and I got the job. Just wanted y'all to know, as long as your synthetic has pre-mixed urea, balanced PH, creatine, and is the right temperature (94-100) when taken, it WILL pass a lab test. You're welcome.