Kiehl’s Retinol Skin-Renewing Daily Micro-Dose Serum 1.7 oz / 50 mL Authentic Kiehl’s Retinol Skin-Renewing Daily Micro-Dose Serum — full size 1.7 oz / 50 mL. Powerful yet gentle daily-strength retinol serum formulated with pure retinol, peptides, and ceramides to help improve skin texture, support firmness, and soften the look of fine lines and wrinkles while minimizing dryness and irritation. • Full size 1.7 oz / 50 mL • Retinol anti-aging serum • Helps refine texture and improve firmness • Formulated with peptides + ceramides • Designed for daily use / micro-dose formula • Includes box • Excellent condition Great way to try a premium dermatologist-loved retinol treatment for less. Smoke-free home. Packaged carefully for shipping.