The main problem I see with vaping Cannabis extract is, there isn’t much that a consumer can do to verify the quality of the product. The cannabis could be contaminated with mold or neem oil from the grow up or it could be leftovers from the extraction method, because it wasn’t purged right.

Neem oil is something that was cleared for fruits and vegetables, something that you wash and eat. But I think it would be poisonous when you inhale it.