What causes kidney herbs Damage?

Herbal medicine is one legacy of ancestors Grandma Indonesia where herbal medicine is an alternative medicine made from plants are efficacious against the health and beauty.
Maybe once we heard that the use of herbal medicine in the long term causes kidney damage? Actually, the basic ingredient of herbal medicine derived from plants and herbs which have efficacy as a medicine or other health benefits. The problem now is with the more modern times, herbs have become a major industry in this country, where herbal medicine manufacturers are competing to sell products to consumers in various ways. Consumers are also increasingly facilitated by the form of this herb. Herb now has no bitter taste, because there is already a form of pills and drank way also be a lot easier.
Supposed medicinal ingredients are 100% natural ingredients, but because the development of herbal medicine industry is causing manufacturers to add the chemicals into products such as dyes, preservatives and even chemical drugs.
The addition of these chemical substances that cause consume herbal medicine in the long term causes kidney damage. Even the Food and Drug Monitoring Agency found many herbs that contain many chemicals that are harmful to health.
Therefore it is wise in consuming herbal medicine, what more in the long term.