Here’s a serum that everyone should have in their skincare routine 👀 Our effacacious retinol serum is formulated with Pure Retinol in a daily-strength micro-dose, along with Ceramides and Peptide, to help promote gentle skin surface turnover for youthful-looking skin. 💜💜💜 #Kiehls #Retinol #RetinolSerum #YouthfulSkin #EssentialSkincare