Because artichoke is closely related botanically to milk thistle, its leaves offer similar protection. As well as being a source of folic acid, fiber, potassium, and vitamin C, artichokes contain cynarin, an acid that aids hepatic function, plus a cleansing compound called inulin. The herb may also reduce cholesterol synthesis in the liver. Artichoke leaf extract is found in some liver-detox formulas. Renew Life Liver Detox (renewlife.com), for example, combines artichoke leaf with milk thistle seed, selenium, dandelion root, green tea leaf, and other purifying ingredients. (It's taken in conjunction with a formula of ayurvedic herbs to support liver function.) Nature's Secret Ultimate Liver Cleanse (naturessecret.com) also provides artichoke leaf, along with milk thistle, dandelion, and other herbs.