This is good stuff. I usually drink black tea all day – but I’m tired of it. I don’t like coffee. Doctor says I shouldn’t use Splenda (so that rules out all diet drinks). Regular soda has too many calories. I wanted to caffeinate flavored tea or lemonade or even water. Half a pump in the 24 oz cup I sip on works great to keep my energy levels up all day. It has no flavor of its own – I’ve put in in plain water and I can’t even taste it. I will be continue buying this stuff.