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Neem oil contains a chemical known as nimbidin that gives it a sulfur-like odor and some ability to help control fungus and also work as a pesticide. Neem oil can be a skin irritant and is also poisonous if ingested—avoid this form and note that the constituents that make the oil a problem for skin aren’t present in the extracts, which is why the extracts are rated differently.
References for this information:
Scientific Reports, September 2016, ePublication
Environmental Toxicology and Pharmacology, March 2013, pages 240-246
About the Experts
Paula Begoun is the best-selling author of 20 books about skincare and makeup. She is known worldwide as The Cosmetics Cop and creator of Paula’s Choice Skincare. Paula’s expertise has led to hundreds of appearances on national and international radio, print, and television including:
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