Herbal medicines are plant-based medicines made with the active components of plant parts such as leaves, flowers, seeds, stems or roots. It is based on the idea that different parts of a plant provide different therapeutic properties. Herbal medicines are considered dietary supplements, often sold in the form of tablets, capsules, powders, teas, extracts, and fresh or dried plants. They can also be Applied to the skin as gels, lotions, or creams or added to bath soaks. They are used to maintain and improve health conditions of joints and bones, heart health, hormone health, emotional health, energy and stamina, digestion, allergies, and the immune system. However, they can result in adverse health effects if used incorrectly and without consulting a trained herbal medicine professional. In general, it is recommended that pregnant or breastfeeding women, children, and people going to have surgery should avoid using herbal medicines. Such problems include negative interaction with prescription or over-the-counter medicines, as well as bad side-effects as not all herbal medicines are regulated. Some of the most common herbal supplements are Black cohosh (used for menopausal conditions, painful menstruation), Echinacea (strengthen the body's immune system), Evening primrose (may be helpful in reducing symptoms of arthritis and premenstrual syndrome); Garlic (used for cardiovascular conditions e.g. high cholesterol and triglyceride levels); Ginseng (helpful in elevating energy levels); Hawthorn (for heart-related such as angina, atherosclerosis, heart failure, and high blood pressure); St. John's wort (used in the treatment of mental disorders and depression).