where to buy avena sativa with 5% or more avenocosides?

Answer 1

AVENA SATIVA works the best in "Q"(Mother Tincture) potency , you can get it ayt most Health and Herbs Stores all over USA and EU most of them sell Homeopathic Remedies or you can buy it online from a number of sites, here are a few :-
http://www.naturesway.com/NaturesWay/products.aspx?productid=Homeopathic_Category
http://www.freemans.uk.com/index2.html
http://www.homeopathyworks.com/index.php
http://www.schwabepharma.com/start/fs_start.html

I hope this answers your quesry to your satisfaction, to read more about AVENA SATIVA click the link below :-
http://homeoint.org/books/boericmm/a/aven.htm

Take Care and God Bless You !