Original Derma Roller 540 Titanium Microneedle | 0.25mm/0.5mm/1mm/1.5mm Derma Roller | Versatile Skin and Beard Care for All. DERMA 540 Titanium Micro Needle Skin & Hair Regeneration Roller. The Derma 540 Roller gently punctures the epidermis with ultra-fine titanium needles, creating over 300,000 micro-channels in minutes.
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