Medicube Age-R Collagen Booster Gel Serum for Skin Care Devices - Filled With Collagen Radiance Capsules - Visible Skin Elasticity and Moisturizing Care - Hypoallergenic Korean Skin CareMedicube Age R Collagen Booster Gel Serum is a multi purpose serum designed to enhance the effectiveness of Age R Derma Shot and USSERA. It works as a conductor for the devices while providing deep nourishing and moisturizing benefits to the skin. Benefit from the inclusion of Plant Stem Cell Extract, which contributes to a visible dual care effect for skin elasticity and radiance. Your skin will experience a radiant glow and a firmer, more youthful