Herbs materials shall be Herbs from non-epidemic areas that have passed the inspection. The additives used should meet the requirements of the variety catalogue of feed additives. raw and auxiliary materials shall not be adulterated with additives or other prohibited ingredients expressly prohibited by relevant departments of the state. Our herbs are sourced from licensed sources, from natural and pollution-free farms. The process of transportation is very fast. Typically, it takes less than five hours to get the raw materials to the factory.