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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.

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Latest from Danusia Wnek

Three different hair styling brushes in black and yellow against a pink and grid background.

We Tested 10 Hair Dryer Brushes–These Saved Us the Most Time

Achieving a bouncy blowout is about to become *a lot* faster.

Hand holding a Dyson hair dryer with external filter cage removed.

You Should Be Cleaning Your Hair Dryer—Here’s Why

Experts say this simple monthly maintenance step can help keep your hair dryer running smoothly.

Clairol Nice’n Easy 10 hair color box featuring a model with long dark hair on a light blue background.

GH Seal Spotlight: Clairol Nice’n Easy 10 Permanent Hair Dye

This at-home hair color covers grays in just 10 minutes, with less odor and damage than traditional dyes.

A white hair dryer with multiple attachments on a marble surface, featuring a round diffuser and concentrator nozzles.

What Hair Dryer Attachments Actually Do and How to Use Them

The right nozzle can smooth strands, define curls, or add lift at the roots.

Assorted sunscreen products with various SPF ratings displayed on a light-colored surface.

The FDA Approved a New Sunscreen Ingredient for the First Time in Decades—Here’s What We Thought

We tested four new formulas with the new filter to see how they compare.

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9 Best Face Moisturizers That Really Work, According to Beauty Lab Testing

According to our scientists, these dream creams are proven to hydrate all skin types, day or night.

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11 Best Teeth Whitening Products That Lighten Teeth Up to Four Shades

The most effective whiteners that actually worked in our Lab testing.

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15 Best Tinted Moisturizers for Every Skin Type

These expert-approved picks give you a fresh complexion without foundation.

12 best dark spot corrector of 2026, based on lab testing

11 Best Dark Spot Correctors, Based on Beauty Lab Testing

You’re going to want to see these before-and-after photos.

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15 Best Hair Thickening Products for Instant Volume

Top-tested creams, sprays, and more for the ultimate full effect.

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