What It Is: A clinical-grade 15% Vitamin C Complex serum that promotes a brighter, healthier-looking complexion. What It Does: Infused with three sources of Vitamin C, this lightweight serum delivers a powerful dose of antioxidants to help lighten dark spots and give your skin a firmer appearance. Plant-derived caffeine sources think yerba mate and guayusa are enhanced by passion fruit and dragon fruit extracts to help defend against free radical damage while offering de-puffing and…