After vowing to take better care of her health and skin, lifestyle influencer Amal Amamou tests Lancôme’s new Rénergie Triple Serum to help fight wrinkles, loss of firmness and dark spots.

From what it is and how it works to the do's and don'ts—a dermatologist dishes on this buzzworthy ingredient.

Plus: Everything else you need to know about this popular skincare ingredient.

Twenty-five consultation questions and a week of use later, my curls and I love each other