The Bio Needle Derma Stamp features 120 ultra-precise stainless steel needles that penetrate the skin to create thousands of micro-channels. These micro-injuries trigger your body’s natural healing response, boosting collagen production, improving blood flow, and stimulating dormant hair follicles. This bio needle derma stamp is used in clinics around the world for scalp and facial hair restoration. It provides the precision of a microneedling pen without the cost or maintenance ,ideal for targeting the hairline, beard, temples, or patchy areas where rollers often fall short.