By creating tiny micro-channels in the uppermost layer of the skin, dermal rolling aids with product absorption at a deeper cellular level than topical application alone, helping to result in brighter, fresher, prettier skin. Featuring 560 0.2mm hypoallergenic stainless steel needles, these roller heads make thousands of painless micro punctures in just seconds, giving your favorite skincare products new points of entry where they didn't exist before. Molecules that would otherwise be too large to penetrate the upper layer of the skin are now given greater access to the next layer, helping to improve their performance and results.