i only have tfa / tpa peppermint and seems like a lot of ppl on here use it and like it. i find it decent but not strong enough. i use it as a single flavor with menthol crystal drops. the menthol and the menthol in the peppermint affects the overall taste as well. Should i just buy a bottle of peppermint oil from a health shop online or are there flavors from the other companies that has a tasty peppermint?