Holy Basil (tulsi), Shatavari and Shilajit. Alan Keith Tillotson PhD, A.H.G., D.Ay, (Author), O.M.D., L.Ac., Nai-shing Hu Tillotson (Contributor), M.D., Robert Abel Jr. (Contributor) The One Earth Herbal Sourcebook: Everything You Need to Know About Chinese, Western, and Ayurvedic Herbal Treatments Kensington press, Puri, H.S. "RASAYAN: Ayurvedic Herbs for Longevity and Rejuvenation". Taylor & Francis, London, 2003. Gives monographic account and illustrations of 57 plants used as Rasayana in India, along with old as well as new Rasayan formulations. Puri, H.S. Ayurvedic Minerals, Gems and Animal Products for Longevity and Rejuvenation. India Book Store, Delhi 2006. Scientific details of all the ingredients other than herb, used as Rasayana in Ayurveda is given. The study on gold, mercury, sulfur, musk and Shilajit are given in good details. Anonymus: National Seminar on Rasayana, 8–10 March 1999, Proceedings, Central Council for Research in Ayurveda and Siddha, New Delhi. A very good account of various aspects of RASAYANA by many learned authors. Fabrizio Speziale, “Rasāyana and Rasaśāstra in the Persian Medical Culture of South Asia”, History of Science in South Asia, 7, 2019, pp. 1-41. Alchemical traditions Ancient Indian medicine Ayurveda Juice