Changsha Huir Biological-tech Co.,Ltd is a leading manufacturer & exporter of plant extracts/herbal extract in China for 11 years, we are committed to the development of natural, healthy and safe ingredients for food and beverage additives, dietary supplements, pharmaceutics, health care and cosmetics industries.Lab & Certifications Huir has professional technical personnel and advanced technology for product development and quality control. It includes content detection by HPLC, UV, GC, GC-MS, TLC, microbial controls, heavy metal and pesticide residue detection. Our products are certified by HACCP, ISO9001:2008, Kosher, Halal, FDA Register.