Landmark Nutraceuticals Co., Limited- is one of the innovative and high-tech company in steroid hormone fields in China, who has engaged in R&D, production and marketing for more than 10 years. Ever since its foundation, Landmark enterprise invests much funds for perfect equipment, advanced detecting instruments and excellent R&D teams. At the same time, our company keeps intimate cooperation with the famous experts from famous universities so that we can promote the quality of our goods, and c