What is facial serum: what is it for and when to apply it
The secret to radiant and luminous skin? The serum! A true elixir of beauty: with its concentration of active ingredients and the ability to act deeply, the facial serum has become a must-have for anyone who desires flawless skin. In this article, we will explore in depth the magical world of facial serum: what it is used for and what types exist to solve specific skin problems.