I had read about Kaloba and thought I'd buy some to keep on hand. This past week I got a sore throat, achy head, cold etc which I just knew was going to turn into something nasty. So I used Kaloba for the first time. The next day I felt so much better & no cold, sore throat developed at all. I know that a trial where n=1 isn't the most scientific, however whatever caused me to get better has to be good - & I'll put that down to Kaloba. Gave my bottle to my elderly mother and just ordering a new one for myself.