We have been using this for sometime now and have found it very effective when ingested ( a teaspoon sufficiently does it ) I have used this also on younger members of the household, it is perfect for those who struggle with the strong flavour of oregano oil as this one is only 3%. Yes I would recommend this. We have had no colds or flu for 2 years ongoing. Can cure a tummy upset in an hour or so, much better and quicker than meds. Safe for use on pets too but follow instructions. For adults who can cope the stronger version it can stop an illness in its tracks.