Tia Zakher’s videos about not washing her face drew millions of views, numerous questions and some legitimate concern. She insists she’s fine. By Alisha Haridasani Gupta Tia Zakher, a 22-year-old ...

If you’re wondering how to use hyaluronic acid in your daily skin care routine, you’re not alone. The word acid makes it sound like a daunting ingredient to some, but hyaluronic acid is actually a ...

We asked doctors, chemists and beauty industry insiders what’s good for your skin and the environment, too. Credit...Photo Illustration by The New York Times; Shutterstock Supported by By Rachel ...

Walking down the skin-care aisle is like sensory overload. There are gels, creams, so-called essences, and serums, so many serums. The products claim to revitalize, exfoliate, hydrate, brighten, ...