Been using the same guy for years now. Usually text him with a order he ships them to me. Usually has the brand on the vial but for the last few times when I order I get vial with no label on it. I asked about it sometimes he says the printer wasn't working or he just didn't around to doing it.
Weird is the brand one I used to get was clear. But now the one without the label is slightly tinted yellow. This is only for the test. All the other stuff has labels on it.
Should I be concerned?