Experience the rejuvenating power of ZO Skin Health Firming Serum. This blue and silver serum is designed to enhance skin firmness and elasticity, leaving your skin looking youthful and radiant. Used once, I can’t use gel based serums which I didn’t know until using this and other varieties so selling. 100% full so there is no line to mark for level. Expiration and batch number in images. Packed sealed and boxed for safety. Benefits Visibly tightens and firms the skin Improves the appearance of sagging and skin laxity Helps define facial contours Supports the appearance of healthy skin and the skin’s natural renewal process Defends against free radical damage