The KIEHL’S Retinol Skin Renewing Daily Micro Dose Serum is a 1.7 fl. oz (50 ml) product specifically designed to target early signs of aging, redness, wrinkles, and age spots on the face. Formulated with retinol, this daily micro-dose serum is suitable for all skin types and comes from a United States brand known for its quality skincare products. The serum is oil-free, alcohol-free, paraben-free, and perfume-free, making it a safe and effective option for women looking to combat signs of aging and improve the tone and firmness of their skin.