Non-GMO Project Verified Gluten Free Dietary Supplement Since 1978 Plants Rule Promotes Cleansing and detoxifying the body of foreign organisms. Helps normalize the digestive tract. Neem Leaf - Inhibits organism growth Black Walnut Hulls - Encourages toxin release Butternut Bark - Promotes colon cleanse Fennel - Relieves bloat For over 35 years, it has been my goal to help you feel better safely & naturally. Crystal Star products are the best choice. Linda Page, Ph. D, Traditional Naturopath. GMP Quality Assured - This product has been manufactured at a GMP registered facility certified by the NSF (The Public Health and Safety Company).