Neem, a fast-growing tree native to the Indian subcontinent, is a powerful acne fighter with antiviral, antibacterial, and antifungal properties, and is a cornerstone of skin health in Aruvedic medicine. When applied externally, neem helps clarify skin by reducing redness and accelerating wound healing. If you’ve ever smelled the oil, you know why use the whole leaf!
Find it in:
 Biswas, Kausik, et al. "Biological activities and medicinal properties of neem (Azadirachta indica)." CURRENT SCIENCE-BANGALORE- 82.11 (2002): 1336-1345.
 S. Zillur Rahman and M. Shamim Jairajpuri. Neem in Unani Medicine. Neem Research and Development Society of Pesticide Science, India, New Delhi, February 1993, p. 208-219. Edited by N.S. Randhawa and B.S. Parmar. 2nd revised edition (chapter 21), 1996