A derma roller is a handheld roller-device covered in Micro Needles – Needles ranging in length from 0.25 mm to 2.5mm , which is rolled over the skin. This is done in order to create tiny punctures on the skin which triggers skin repair, leading to the creation of new collagen. A bodily protein made up of amino-acids, collagen is the part of the connective tissue that helps in firmness, strength, suppleness, and elasticity in skin.
