A quality Derma Roller with small tiny needles that do not damage the skin but simply help open the pores to increase the effectiveness of skincare actives. A proven and documented device that is a must in any skincare routine. Use it two to three times a week when applying your skincare products and you will see the difference. The needles of this Derma Roller are medical grade titanium needles and are only 0.25mm long. These are designed to ONLY help open the pores. On initial use it may cause some redness which will go away shortly afterwards.