Research indicates that watercress extracts can have antioxidant activity, but that information is limited and was carried out either in vitro or as animal experiments, not in skincare products.
Reference for this information:
Applied Biochemistry and Microbiology, July 2001, pages 392–399
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!