So i just bought a flavor from a local b&m. Its their new premium line and when i tried it at the shop i thought it was great. But now that ive been vaping on it for some hours the creamy taste is now more of a buttery taste. I know that diacetyl is used in creamy buttery flavors. I was just wondering how to go about getting it tested. Does anyone know of a place i could send it? I would gladly spend a lil cash to go back and tell them how bad it is