Derma roller for skin and hair 540 microneedles, 0.5mm Lightweight and easy to handle Smoothen acne scars, reduce fine lines, wrinkles, and dark circle Provides intensive cell renewal Stimulates Collagen and Elastin Production Improves skin elasticity Reduce pore size Smoothest Acne scars and other skin inflammations Reduce stretch marks and wrinkles High-sealing sterilization packaging Skin maintenance micro needle nurse system Stimulate the collagen production Improve elasticity of skin.