StriVectin's patented NIA-114 technology is a collection of smart, targeted solutions for aging and changing skin that deliver real, visible, clinically proven results. The Tightening Face Serum is a lightweight formula designed to leave your skin soft and more supple. The formula is a combination of NIA-114 and a powerful tetrapeptide that will visibly firm and nourish your skin for a sculpted lift. Cruelty-free, parabens-free and suitable for all skin types.