Catharine Malzahn
Contributing beauty writer
Catharine Malzahn is a contributing beauty writer at Cosmopolitan and was previously the beauty assistant at Good Housekeeping, Woman's Day, and Prevention.
- Topic Specialties
Latest from Catharine Malzahn
14 Best Retinol Body Lotions for Radiant Skin
Use these formulas all over your body for firmer, smoother skin.
12 Best Color Correctors for Stubborn Spots and Dark Circles
After evaluating cream and liquid formulations, these are our top recommendations.
18 Best Korean Skincare Brands for "Glass Skin"
Get to know all the best brands and ingredients in Korean skincare.
The Ultimate Guide to Rescuing Winter Skin
With sweater weather and cozy fires also come chilly temps and drier air, which can lead to pesky skin issues like dryness, chapping, flaking and redness from head to toe. But these easy GH Beauty Lab and dermatologist-approved solutions are here to save the day(s)!
11 Best Body Washes for Dry Skin in Any Season
Soothe dry, itchy skin with super hydrating formulas.
Does Hair Growth Oil Actually Work?
They may be popular, but hair growth oils may not be the magical solution you’re hoping for.
10 La Roche-Posay Products Our Beauty Experts Can't Live Without
Skincare lovers, gift yourself (or someone else) these must-have moisturizers, sunscreens and serums.
10 Best Face Scrubs, According to Our Testing
Get glowing with these face scrubs for all skin types, from sensitive to acne-prone.
7 Best Face Steamers to Purge Pores and Cleanse Skin
Relax and enjoy a professional facial experience at home with these top-tested devices.
10 Best Pore Minimizers for the Smoothest Skin Ever
Minimize your pores with our Beauty Lab's top picks.
6 Best Hair Straightening Brushes, Tested and Reviewed
These top-tested hair tools will give you smooth, silky hair in no time.
