Danusia Wnek
Senior Chemist
Danusia (she/her) is a senior chemist in the Beauty, Health and Sustainability 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 10 years of experience in the personal care industry including formulation, product development, claim evaluation and efficacy testing.
14 Best Natural and Organic Sunscreens, Tested by Our Scientists
You can trust these face and body SPFs.
The 13 Best Dark Spot Correctors That Gave Visible Results in Our Lab Testing
See the before-and-after images to believe.
16 Best Night Creams to Help All Skin Types Get Their Beauty Sleep
Wake up with glowing skin.
9 Best Tested Waterproof Mascaras With Serious Staying Power
Of the 74 tubes we tested, these ones were the very best.
14 Best Nail Strengtheners for Your Strongest Nails Ever
Pro tips and product picks to harden weak, chipping nails.
16 Best Hair Thickening Products for Instant Volume
Top-tested creams, sprays and more for the ultimate full effect.
13 Skin Tightening Creams That Actually Firm Your Face
These powerhouse formulas were the most effective at tightening and smoothing skin in our Lab testing.
14 Best Retinol Body Lotions for Radiant Skin
Use these formulas all over your body for firmer, smoother skin.
We Tested 115 Self-Tanners to Find the 8 Best for the Perfect Faux Glow
These formulas are easy-to-use, smell good and won't leave you looking orange.
The 15 Best At-Home Hair Color Products, Per 400 Hours of Lab Testing
Get professional results with these top hair dye brands for gray coverage and rich, lasting color.
10 Best Wrinkle Creams That Actually Worked in Our Lab Tests
These are proven to be the top anti-aging moisturizers on the market.
The 13 Best Teeth Whitening Products That Actually Work, Per 150 Testers
These top at-home strips, kits and toothpastes whiten teeth up to four shades.
13 Best Neck Firming Creams That Actually Tighten Skin, According to Lab Testing
GH Beauty Lab scientists have real before-and-after images to prove it.
8 Best Hair Dryer Brushes to Make Wash Days So Much Better
The easiest way to get salon quality blowouts at home in one easy step.
8 Best Epilators That Remove Every Last Hair
Top tools to get rid of unwanted fuzz from face to feet.
The 14 Best Sunscreens You Can Buy of the 795 Our Scientists Tested
We evaluated face and body SPFs on thousands of testers to find the top formulas.
17 Best Eye Creams, According to Beauty Lab Testing
Real women saw a difference in wrinkles, dark circles and puffiness using these.
15 Tinted Sunscreens That Leave You Glowing, Not Ghostly
Sheer, tinted protection for all skin types and tones — plus, no chalky residue.
The 12 Most Moisturizing Hand Creams, Per 1,300+ Skin Hydration Measurements
Wave goodbye to dry hands.
9 Best Waterproof Eyeliners That Won't Budge
Of the 139 we tested, these are the ones that'll last through sweat and tears.
The Best Hair Products You Can Buy, According to Our Testing
These top brands guarantee healthy, beautiful hair — starting at under $10.
10 Best Root Touch-Ups to Revive Your Hair Color
Cover grays and regrowth at home with these top-tested permanent dyes and temporary products.
13 Best Anti-Aging Serums That Really Work, Tested by Our Scientists
These products are proven to measurably reduce wrinkles, dry skin, dark spots and more.
7 Best Neck Massagers for Instant Tension Relief
We tested over a dozen neck massagers and these picks stood out for their effectiveness, comfort and overall value.
7 Best Teeth Whitening Strips, According to Testing
Whiter teeth are just a few strips away.
13 Best At-Home Chemical Peels for Glowy Skin, Tested by Beauty Scientists
Our top-tested face peels will soften sensitive skin, wrinkles and more.
10 Best Face Scrubs, According to Our Testing
Get glowing with these face scrubs for all skin types, from sensitive to acne-prone.
13 Best Glycolic Acid Products of 2024, Tested by Experts
Brighten and smooth skin with one superstar ingredient.
7 Best Face Steamers to Purge Pores and Cleanse Skin
Relax and enjoy a professional facial experience at home with these top-tested devices.
14 Best Toners to Get Rid of Brassy Tones in Blonde Hair
Say hello to icy, glossy strands.
12 Best Heat Protectants, Tried and Tested
These power stylers can guard against hot tool damage.
6 Best Hair Straightening Brushes, Tested and Reviewed
These top-tested hair tools will give you smooth, silky hair in no time.