Serum containing low-molecular-size collagen and elastin penetrates deep within skin to boost skin elasticity for a plump and youthful-looking finish. Other active ingredients such as milk protein, glucose and peptides deliver intense skin nourishment and moisturization. For optimal results, use with Medicube’s AGE-R Booster Pro for deeper absorption of active ingredients into skin.Benefits:This serum contains 260 Dalton of deep absorption Collagen and offers a consistent volume glow to the skin.Filling density system to the inner skin of only one shot with the PDRN Milk Protein and Hybrid Peptide Glucose.Formulated with triple-density care ingredients, including Collagen, Elastin, and Proteoglycan, to help enhance loose skin by offering elasticity and moisture.Hypoallergenic tested for the sensitive skin.How to use: 1. Open the serum by turning left and push the pump to apply a moderate amount to the face. 2. Pat for better absorption and close the serum by turning right.