Xi'an Rainbow Biotech Co.,Ltd，is a leading plant extract manufacturer and herbal formula supplier in China. Rainbow own self Echinacea Purpurea planting base over 300000㎡ ,and also cooperate with reliable Planting cooperatives from plant origin areas in China ,to make sure the the quality of the raw material .And have professional R&D team and strong R&D strength, is the practice teaching basement of Northwest A&F University . As the member of Shaanxi Plant Extract Association ,Rainbow focus on producing of Plant Extracts,Fruit and Vegetable Powder,Formula. Rainbow factory has passed QS and ISO9001 attestation.Headquartered in Xi"an, with professional sales and complete services. Rainbow has established stable trade relationship with customers over 40 countries. Free sample is available, we appreciate any inquiry from you, Pls feel free to contact us.