I got a 30 ml bottle of vanilla cream from clouds of vapor about two and a half weeks ago. It was excellent for the first 20 ml or so. I have about ten ml left and it won't hardly vape anymore. I get little to no vape and little to no flavor. I thought maybe I needed a new head on my vivi nova tank, but when I put a new one on, it was the same. I then put some Gorilla juice in it and it Vaped like a smoke stack and tasted insane good.