HYALURONIC ACID 1.0OZ. Benefits: INKEY's best-selling face serum that helps your other skincare work harder. Formulated to combat dryness and fine lines without feeling sticky or tacky, this lightweight, peptide-infused serum instantly melts into skin, delivering deep hydration to leave skin feeling nourished and plumped.. Key Ingredients: Multi Molecular Hyaluronic Acid 2%: Delivers hydration across multiple layers of the skin. Matrixyl 3000 Peptide: Plumps, firms and smooths skin's appearance. Research Results: Clinically proven to deliver instant hydration*. Contributes to improved skin barrier by reducing water loss*. 82% agreed their skin felt firmer and more elastic after 4 weeks of use*. 86% agreed the serum is non-tacky*. *4-week independent clinical study of 22 people under dermatological control.