Rezenerate Nano-Infusion Serum Pen with case, charger and certificate of authenticity. You will have to purchase the tips from Rezenerate, as this doesn't come with any. They are usually about $10/each. The device itself works perfectly and is in perfect shape, but the case is scratched up. The Rezenerate pen, also known as the Rezenerate Wand, is a handheld skincare device that uses nanotechnology to treat skin concerns. How it works: The pen's silicon chip contains microscopic pyramids that create micropermeations in the skin's surface. This allows serums to penetrate deeper and more effectively. The pen also uses vibrations to gently tap the skin's outer layer. What it can treat: Fine lines and wrinkles Blemishes Pigmentation Sunspots and age spots Oily or dry skin Comparison to microneedling: The Rezenerate pen is often confused with microneedling, but the two are not the same. Microneedling uses needles to create controlled injuries in the skin, which can be uncomfortable and may require downtime.