So I have a pre-employment drug test at Labcorp coming up soon. I am free to schedule it whenever I want since I am currently living in PA and the company is based in MA. But I would like to get it over with asap since I will probably fail regardless for the next couple weeks. So I purchased a box of Quick Fix 5.7-1 per all of the good reviews. However, the box looks relatively dated and there is no visible expiration date on the box. The only expiration date is that on the heating pad. Since the only issues seem to stem from the possibility that it's a bad batch, I am concerned that this specific box is old and expired.
The expiration date on the heating pad is 01/2016. So my question is, is this characteristic of (relatively) fresh batches or is there no way of telling.