SkinPen™ is a medical-grade device, and works by creating a series of hundreds of microscopic channels into the dermis to stimulate the skin’s natural production of new collagen and elastin, helping skin to look and feel healthier. While multiple sessions are recommended to achieve optimal results, noticeable results are typically seen just one week following treatment and gradually improve as the body’s healing process promotes the production of healthy, new cells and extracellular matrix (e.g., collagen, elastin, hyaluronic acid). Patients with uneven skin-tone and fine lines may see results after just one treatment, while those looking to soften the appearance of acne scarring may require several treatments.