Danusia Wnek
Senior Chemist
Danusia (she/her) is a senior chemist in the Beauty and Personal Care Lab at the Good Housekeeping Institute where she evaluates haircare, skincare, cosmetics and beauty tools. She holds a B.S. in chemistry from St. John’s University and a M.S. in pharmaceutical sciences with concentration in cosmetic science from the University of Cincinnati. Danusia has over 15 years of experience in the personal care industry including formulation, product development, claim evaluation and performance testing. The number one skincare rule she lives by: never go to bed with makeup on.
- Topic Specialties
Latest from Danusia Wnek

Retinal vs. Retinol: What to Know Before You Buy
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10 Best Deep Conditioners of 2024, Tested by Experts
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30 Best Skincare Products of All Time, Tested in Our Labs
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10 Best Dry Shampoos, Tested in Our Labs
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21 Best Face Serums of 2024
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The Benefits of Witch Hazel for Your Skin
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Why You Need to Add Vitamin C to Your Skincare Routine ASAP
The benefits of this antioxidant go way beyond brightening skin.

15 Best Drugstore Mascaras, According to Makeup Pros
Short lashes? Sensitive eyes? There's a top-tested mascara for you.

13 Best Flat Irons for Natural Hair, According to Pros
Maximize smoothness and shine, minimize damage.

12 Best Cleansing Conditioners for Every Type of Hair
Co-washes for curly hair, natural hair and beyond.

What Is Retinol? Facts About Its Uses, Benefits, and Side Effects
The OTC vitamin A derivative can improve the appearance of wrinkles and acne.