Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum 30ml

• Precisely formulated to deliver a daily-strength dose of Pure Retinol for visible results with minimal discomfort including redness, dryness, and peeling
• Serum helps promote skin tolerance of Pure Retinol with Peptide and Ceramide
• 90% of users, even first-time Retinol users, agree skin feels comfortable and 94% agree texture feels refined [2]
• In a clinical evaluation, 100% showed wrinkle reduction and 90% showed improved skin firmness [1]
• Regain up to 5 years of youth with visible wrinkle reduction [3]
• Easily integrates into a skincare routine, suitable for use day or night
• For all skin types, including first-time Retinol users and sensitive skin types
• TSA Approved  

Results based on:
[1] Expert grading in a clinical test after 12 weeks of use.
[2] Consumer perception test after 12 weeks of use.
[3] Based on expert grading of the appearance of wrinkles for participants aged 45+ after 12 weeks of daily use (50ml size), versus those aged 40-44, untreated.