ZO Skin Health’s Firming Serum is a lightweight, tolerable formula clinically studied over 24 weeks to visibly tighten and firm skin, helping define facial contours while reducing the look of sagging and laxity. Suitable for all skin types, including sensitive areas, it hydrates and helps defend against free-radical damage to support stronger-looking firmness and elasticity.Powered by ZO Growth Factor Technology with the ZCORE complex and an exclusive firming complex featuring Sodium DNA plus ZO-RRS plant stem cell complex, peptides, hyaluronate, vitamin E, and vitamin A, it supports natural renewal for a smoother, more lifted appearance. Size:1.6oz