The other review is very unfair - no mention of how effective the product is. Really seemed to help me stave off colds/infections when everyone around me was coming down with something. A couple of times I got the beginnings of a sore throat but it went away after a day (and I used to catch everything going) - I put this down to the beta glucans. A good alternative to the usual echinacea, high dose vitamin C etc that many people take (but don't seem to be that effective for me personally!)
Also impressed that this company use no additives like magnesium stearate, silicon dioxide etc.