I haven't done this experiment in nearly 30 years, but I was happy that my kids would get to try it. There're far more than we'll ever need, but it was so inexpensive it was worth it. Though it wasn't as strong as I remember, I could still taste it; and we discovered that half of our family are tasters and half aren't.
Glad we were able to order this for the science experiment.
I had a whim to test everyone I knew for PTC sensitivity, and ordering here let me do just that. Fun product, works perfectly.