Before The discovery of HeLa cells, researchers have been unable to determine tissue cultures with any trustworthiness or stability. Much more than six decades later, this cell line is still alive and becoming used for health-related investigation. See Eye on Ethics: The Immortal Cell Line of Henrietta Lacks to examine https://lingjunbio.quora.com/Our-Credentials-We-have-passed-a-number-of-certifications-https-www-lingjunbio-com-about-us