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 ...

Thousands of Amazon shoppers and a PEOPLE editor’s 56-year-old mom swear by the $35 Vichy Vitamin C Serum. This serum brightens age spots and hyperpigmentation while plumping the skin for an overall m ...

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 ...