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- Categories: Preservatives
Also known as sodium borate decahydrate, borax is a mineral composed of sodium, boron, oxygen, and water. It has preservative properties. The pH range of borax is about 9 to 11; therefore, it can be a significant skin sensitizer when used in cosmetics.
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!