Our high-quality dermaroller can help stimulate hair follicle neogenesis. Here's a scientific article on how the process of "wounding" the skin with a device like our dermaroller can result in a two- to threefold increase in the number of neogenic hair follicles.

Fgf9 from dermal γδ T cells induces hair follicle neogenesis after wounding

http://www.nature.com/nm/journal/v19/n7/abs/nm.3181.html