iHerb Customer Reviews
Posted by Reviewer2159194 on Mar 30, 2012
Posted by Reviewer3344300 on Feb 24, 2010
very happy with this book. wonderful information!
Posted by Reviewer2289495 on Jun 04, 2010
Useful- perhaps needs to be updated.
Posted by Reviewer2168977 on Jan 03, 2011
Good book in making an empowered decision to us tryptophan or 5-HTP
OK - informative
Posted by Reviewer1809365 on Aug 02, 2011
I decided to read this prior to trying out 5HTP for the 1st time.