Products made from botanicals, or plants, that are used to treat diseases or to maintain health are called herbal products, botanical products, or phytomedicines. A product made from plants and used solely for internal use is called an herbal supplement.Herbal products may contain entire plants or plant parts.Herbal products come in all forms: dried, chopped, powdered, capsule, or liquid, and can be used in various ways, including:Applied to the skin as gels, lotions, or creams.