K2J Signs of Aging Derma Roller for Hair Growth 540 Chromium Needles(77 ml)
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K2J use only titanium alloy needles to produce our highly effective, gentle Dr roller 0.5mm which is the perfect solution for maximizing results. The Dr roller for Hair comes with 540 titanium alloy needles of diameter 0.5 mm which is the perfect solution for maximizing results. COLLAGEN PRODUCTION: 0.5 mm Dr roller will also stimulate natural collagen production, keratin production, and activate skin-cells growth factors.