I think skin-needling sounds interesting. Depending on the needles' thickness, it might even be relatively painless. However, it's not something I would jump to try on my face unless I knew what the side effects of the treatment are. The article mentions that "like many methods of skin rejuvenation, skin needling is not without risks." but never mentions what those actual risks are. You'd think a risk would be puncturing too deep--but I'm not sure that's possible with a needle that's less than 2mm. Maybe the needles are easily contaminated? I am a bit skeptical that the derma-roller can actually thicken skin overall so it appears more youthful as well as repair really deep scars. Can poking the skin really cause it to produce more collagen and elastin? I would think that the needles would have to do a lot more than simply puncture the skin in order to thicken it chemically. In fact, I wonder if your skin would stop responding to needling treatments over time. I feel like there would a natural capacity for collagen/elastin production. I'd like to find out more about the risks and what your skin looks and feels like immediately after the "needling" process. I'm curious to hear what other people have to say...