Medicube 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 appearance Key Ingredients and Benefits: Our unique formula combines a gel serum with collagen capsules, providing a specialized solution for dull skin. The gel absorbs quickly, offering visible skin elasticity and radiance enhancement. After cleansing, apply a small amount of the gel serum to your face and gently pat it into the skin for optimal absorption. Use with Age-R devices for best results. Avoid rinsing or wiping off to allow the active ingredients to work their magic. Everyone has skin concerns. But not everyone finds the right solution.