Month: October 2021

October 2, 2021

What Is a Serum and When Do You Use Them?

A serum is almost self-explanatory. “A serum really is just a slippery liquid. It’s in between a true liquid and a cream,” says Angela Lamb, MD, an associate professor in the department of dermatology at Mount Sinai in New York City. Within your skin-care routine, they are designed to go after your cleanser and before your moisturizer, says Dr. Lamb. These often contain an active […]