The original Dermaroller® uses the highest quality micro-needles from Germany, treatment with the Home Care Roller by Dermaroller is virtually painless. With optimal needle count, the Home Care Roller by Dermaroller maximizes effectiveness, safety, and comfort. Treat wrinkles, scars, and stretch marks. Stimulates new collagen. See brighter, fresher, younger-looking skin. Allows for unparalleled hydration – get the most out of your moisturizers! BONUS: Comes with Roller Cleaner Details: Medical grade a-traumatic (non-traumatic) needles. Optimal number needle count (162). Durable and can be used 3 times a week for up to one year. Safe and easy to use. Significantly enhances infusion of important nutrients.