Other testing showed that the new serum—a lightweight formula with small oil-filled beads that burst as you ...

Tamim is a beauty writer at InStyle, with nearly a decade of experience writing about beauty, fashion, wellness, and music. The titular ingredient in Cosmedica’s serum is, in fact, the only ...

What do the best serums for mature skin actually do? “Serums are the powerhouses in your skincare routine that deliver lightweight, fast-absorbing, targeted actives directly to the skin ...