As long as you roll it all around your tongue covering all areas it works perfectly
My wife has found it really useful to tolerate the acidity of certain foods.
We have been using the miracle berries for some time now and have helped my wife alot.
Year 10 students loved the experiment.
I can't give a review for the product, if the product hasnt arrived, nor do i see it has been sent as the tracking only shows that the order is being prepared. I ordered it on 26.09., and today is 11.10.