Daily serum with retinol, peptides, and ceramides to promote skin renewal and reduce wrinkles. - Brand: Kiehl's - Product Name: Retinol Skin-Renewing Daily Micro-Dose Serum - Net Weight: 0.05 fl. oz. (1.5 ml) - Ingredients: Retinol, peptides, ceramides - How to Use: Use at night - Effects: Skin renewal, wrinkle reduction, improved skin tone I have another set for sale, so please feel free to inquire about combined purchases!