A dermatologist weighs in on one of the serum's main ingredients, peptide Argireline — and explains how it works.

The FDA initially approved Botox in December 1989 to treat eye muscle disorders. The product again was approved in December 2000 to treat cervical dystonia, a neurological disorder that causes ...

He said that to explain how The Ordinary’s formula might work for preventing and softening wrinkles, we must first understand how treatments like Botox work ... the outer corners of the brow ...