If you want the nicotine with no flavor he has that. It is called diy as its name. It is under the first blue icon. Its a drop down list and says diy. You choose that and it is just nicotine and you choose the strength you want. It has no flavor, just nicotine. The doublers have NO nicotine in them at all. They just flavor or double your nicotine. Make your own flavor nic juice in the one blue section. No one else I have seen sells doublers. It is his idea and no can't beat the price. What flavors are you looking for? He has raspberry, tropical punch, butter creme, chocolate, coffee, vanilla, etc.