Even though derma rolling at home might work, it might not give the same results as having a dermatologist do microneedling. Although derma rollers have limited evidence to support their use for hair regrowth, studies have shown that microneedling can effectively stimulate hair growth. Therefore, derma rolling could provide similar benefits. Also, when used with minoxidil, derma rolling is more effective at making hair grow than minoxidil alone.