The greatest skincare professionals continue to sing the praises of this small vitamin with big ambitions whose energizing benefits on our metabolism are well known. It is less obvious, however, to disentangle the true from the false when it comes to targeting its cutaneous action. To what exactly does vitamin C owe its title of queen of glow, and why is it essential for the protection and preservation of our precious epidermis? Zoom in on this magician of time.