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sodium stearoyl lactylate
A synthetic or animal-derived ingredient (Paula’s Choice Skincare uses the former) that stabilizes the water phase of moisturizers and other skincare products that contain hydrating ingredients. Sodium stearoyl lactylate works via its interaction with proteins and starches, where it can also help modify a product’s texture.
It can also function as a surfactant.
Reference for this information:
Journal of Colloid and Interface Science, December 2016, pages 393-404
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!