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Rating Ingredient
Poor

yarrow extract

Extract for which there is little research showing it to have any benefit for skin. What studies do...

Good

yeast

Group of fungi that ferment sugars. Yeast is a source of beta-glucan, which is a good antioxidant....

Categories: Antioxidants
Good

yeast extract

Categories: Antioxidants
Good

yellow 5

Good

yellow 6 lake

Best

yerba mate extract

Plant ingredient used in the preparation of the most popular tea-like beverage in South America. It has...

Poor

ylang ylang

Fragrant, volatile oil that can also be a skin sensitizer…

Average

yogurt

There is no research showing that yogurt is effective when applied topically on skin. Yogurt...

Categories: Miscellaneous
Average

yucca extract

Plant extract that can have soothing benefits...

Average

Yucca schidigera

Categories: Uncategorized

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:

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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!