Guangzhou Trauer Biotechnology (广州创尔生物技术股份有限公司) is a biomedical research and development company. It engages in enzymatic extraction, high-purity collagen preparation, immunogenicity elimination, raw material preprocessing, virus inactivation, and product sterilization. The company provides collagen sponges, dressings, sprays, gels, sleeping masks, creams, dietary supplements, and other products.