This is a lightweight, fast absorbing face serum. Peptides visibly improve firmness, while Algae Extract acts a water-binding agent that helps improve skin barrier function and elasticity, and provides antioxidant protection. NIA-114 is StriVectin’s patented, optimized form of Niacin/ Vitamin B3 that is clinically proven to strengthen the skin barrier and supercharge the performance of other ingredients. New in box