I ordered 6 ml of Flavor Apprentice (TPA) from onestopdiyshop. I was really looking forward to mixing up some lemon cookie type vapes and maybe some drinks but I have not been successful in using this flavoring at all. When I got it a few weeks ago, it smelled like perfume...awful...I left the cap off for a night and the next day I tried to add it to a few test mixes. One was a poundcake. I only used one drop for 5 ml and it ruined the mix. Even after steeping for about 10 days, all I can smell is perfume. Unless someone here tells me it's not usually this way, I would have to recommended passing on this one.