Its a wonderful 100% natural product,although you have to be careful and purchase a good product I read a study report conducted in Norway where they tested 10 red yeast rice products of the shelf eight of the samples had various amounts of Citrinic Acid an undesirable toxic substance which may be produced during the fermentation process.The eight samples which contained citrinic acid where the cheaper variations which is pretty true with most things in life.At the moment in the Western world there is a great deal of interest in red yeast rice,it has been mentioned in the Chinese Pharmacopia since 800AD.Also a good thing which is happening at the moment is the UCLA are conducting a clinical analysis of all red yeast rice available the results should be published soon this should help the general public make good informed decisions.Personnaly I use pure strain red yest rice I am not allowed to mention its name but shop around and go for the higher quality product I hope this helps you.I am just glad I do not have to take synthetic concentrated Statins for the rest of my life.And I hope its gets a few others off them to. all the best!!!