Just roll with it. Generate new collagen and skin tissue for smoother, firmer, more toned skin. This derma roller technology minimizes the appearance of stretch marks, acne scars, uneven skin tone, scarring, and large pores.Our roller is made with titanium 540 0.25mm fine needles. Essentially, these microneedles penetrate the skin to stimulate collagen and promote healing in the skin. When done properly and at the right intervals, your skin will look smoother, healthier, and ageless over time. Who doesn’t want that?