u/HurryAccomplished585

Using a throwaway account. I have a test in the morning and was wondering if a few people could help me, I’ve had this Quick Fix formula 6.4 since like months ago in the chance this day approached. I’ve seen people say first check the batch number, how do I do that and why? And people bring up the lab and whether the test is DOT or Non DOT, why does these matter? Just trying to be prepared in the morning!