I've taken the Herb Pharm brand of echinacea on-and-off for 20 years. I've tried other brands and always go back to this one. Has done a fabulous job of preventing or shortening whatever virus is going around.
I love that these are 1 per day, but they are a large tablet and may not be suitable for people who have trouble swallowing. They seem very high quality and have not caused any problems for me (like constipation). I bought 4 bottles this time, if that tells you anything!
Can't comment; haven't starting taking it yet.
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