You've probably tried them separately.
Have you tried anti-wrinkle skincare products before but still have yet to see results? Dermatologist Dr. Shereene Idriss for L'Oreal says the key is in the combination of retinol and niacinamide. How do these two ingredients work together to help reduce fine lines and even skin tone? Watch the video to see.
Presented by L'Oreal.