Adulteration

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American Saffron.

Archives: Best of the Herbal Forums: 02.2003.

Capsule herb quality.

Archives: Best of the Herbal Forums: 01.2003.

Gleanings from the Foreign Journals.

Classic texts: Journals: AJP 1871. Composition of Crude Cream of Tartar, Purified Honey, Analysis of the Red Whortleberry Vaccinium vitis-idaea, A Compound of Sugar and Chloride of Sodium, Adulteration of Chocolate, Milk preserved for thirteen years by Appert's method

Rosehips.

Archives: Best of the Herbal Forums: 01.2000.

Ginseng product quality.

Archives: Best of the Herbal Forums: 06.1995.

Trusting ginseng products?

Henriette's herbal blog: I wouldn't.