What Retinol Actually Does to Your Skin, According to Dermatologists
Dr. Anna Kessler, Senior Dermatology Editor. Retinol appears on more product labels than almost any other active ingredient in skincare, yet what it actually does inside the skin is widely misunderstood. It does not resurface your face overnight. It does not thin…
How Hyaluronic Acid Works at the Molecular Level — and When It Doesn’t
Dr. Sophie Brandt, Biochemistry and Ingredients Editor. Hyaluronic acid is one of the most popular ingredients in modern skincare, present in serums, moisturisers, sheet masks and injectable fillers. Its appeal is easy to understand: it is a molecule the body already produces,…