Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum is a potent anti-wrinkle serum with Retinol that visibly reduces the appearance of wrinkles, firms skin’s feel and refines the feeling of skin’s texture for visible renewal with minimal discomfort. The efficacious anti-wrinkle serum with Retinol delivers visible youthful results in a daily-strength micro-dose. Precisely formulated, this patent-pending Retinol serum for anti-ageing uses a daily-strength dose of Pure Retinol to visibly reduce the look of wrinkles, refine the feel of skin’s texture and firm the feel of skin to deliver Retinol benefits with minimal typical signs of discomfort such as redness, dryness and peeling.