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- Categories: Preservatives
Formaldehyde-releasing preservative used in cosmetics. It can aggravate skin, as can all preservatives, although quaternium-15’s ability to do so is very low if the amount in a product is less than 0.2%.
References for this information:
International Journal of Toxicology, May 2010, supplement 3, pages 98S-114S
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:
The Paula's Choice Research Team is dedicated to busting beauty myths and providing expert advice that solves your skincare frustrations so you can have the best skin of your life!