Micro-needling Boosts Collagen Production,Increases Product Absorption up to 90%. The needles penetrate into your skin, creates tiny channels in the skin so that the active ingredients in our serums can most effectively penetrate the skin. When the derma roller is rolled over the skin, the small, fine needles on the roller puncture the skin. The holes that the needles create are tiny and considered to be superficial. For this reason, the treatment is not seen as invasive. When the skin is punctured, it creates a contIt does not cause actual damage to the outer layer of skin. The needles help to break down any scar tissue.