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

There was snow on the ground for the entire month of January. I regularly wear two down jackets. But my skin is doing great.” ...

You can stop cringing every time you add a bottle of Olaplex or Glossier Cloud Paint to your cart — because these cheaper options work just as well. View Entire Post › ...