✓100% SATISFACTION GUARANTEE?: If you face any Problem Regarding Product or Shipping, feel free to contact us. Please, contact us through Messaging before Opening a Request or Leaving Feedback. We'll solve Your Issue ASAP. ✓SAFE & PAINLESS: Our skin maintenance microneedle nurse system is made of premium 304 stainless steel needles, which is not easy to bend and rust. And it is painless and safe for home use, the storage box can protect the microneedle from dust and dirt, clean and hygienic. ✓SCAR AND ACNE IMPROVEMENT: The derma roller creates lasting repair by stimulating the skin's dermis, boosting metabolism and collagen renewal to achieve smoothing damaged cells and restoring smoothness to the skin. ✓MORE EFFICIENT ABSORPTION: Our derma roller is the perfect complement to your current skin routine. Use your favorite products after and maximize their effectiveness. Skincare just got a whole lot easier! They massage your skin in varying degrees to lock in the serum, which help your skin absorb serum up to 95% and leave your skin looking vibrant. ✓GROWTH and STRENGTH: Collagen consists of amino acids that hair follicle cells use to produce keratin proteins that promote hair growth and strength, which then creates the ideal beard thickener by boosting nutrient-rich blood flow to the area. ✓HAIR GROWTH: The Derma roller For Hair Growth for men Helps reduce Bald and patchy spots on beard, The Beard Growth Roller Stimulates the Hair follicles so it grows thicker and fuller. Each Beard Derma Roller contains 540 titanium Needles, 0.25, 0.5mm, 1mm and 1.5mm.