Alla Selawry (1913–1992) was a Russian scientist, anthroposophist, doctor, homeopath, and theologian. She graduated from the University of Tübingen in 1939 with a master's degree in medicine and worked with Hans Krueger under the guidance of Ehrenfried Pfeiffer to develop Pfeiffer's medical diagnostic technique based on interpreting crystal formations of blood mixed in a copper chloride solution, which Pfeiffer called biocrystallization. She later established a private practice that thrived for the rest of her life. She developed homeopathic treatment regimens based on various metals, many of which had properties described in mythological. In addition, Selawry wrote a number of theological books, including a biography of John of Kronstadt. She died in Stuttgart.