Moisture Matrix Q 30mL Serum Retinol Derivative Glycerin-Free Vitamin B6 Human Ceramide Oil-Free NMF Serum formulated with a high concentration of human ceramide (0.4%) Effectively enhances the moisture barrier Glycerin-free, oil-free except for vitamins, for a refreshing feel. Vitamin B6 and multi-plant extracts prevent skin irritation Developed by a medical doctor with over 20 years of sensitive skin research Contents: 30mL (approximately one month's supply)