StimuROLLER's 540 titanium needles painlessly glide over your skin, creating micro punctures that signal your skin to produce collagen and elastin. The roller dramatically enhances the absorption of topically applied products after your StimuROLLER treatment. First and foremost, Ds Laboratories is a technology company aggressively focused on innovation. All their products have active pharmaceutical ingredients that help ensure the best quality and provide high added value in the care of hair problems.