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Citrus oil whose volatile components (chiefly substances known as furocoumarins) are sensitizing to skin. Topical application of grapefruit oil may cause sensitizing reactions from its chief fragrance chemical, limonene.
References for this information:
Food and Chemical Toxicology, March 2012, pages 756-760
Journal of Agricultural and Food Chemistry, December 2005, pages 9,790-9,794
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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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