Dermarolling is a minimally invasive cosmetic procedure utilizing a cylindrical device studded with fine medical-grade needles ranging from 0.25 to 2.5 millimeters in length to create controlled micro-injuries in the skin’s surface. This mechanical process induces percutaneous collagen induction therapy through precise dermal penetration.
The micro-channels created by the needles trigger the skin’s natural wound-healing cascade, stimulating fibroblast activity and increasing the production of growth factors. The resulting neocollagenesis and neoangiogenesis improve skin texture, reduce scarring, and enhance dermal matrix density. The procedure achieves optimal results at needle depths between 1.5 to 2.0 millimeters for facial treatments.
The technique employs varying needle configurations and materials, including titanium and surgical steel, with specific geometric arrangements designed to maximize efficacy while minimizing epidermal damage. Clinical applications extend beyond aesthetic purposes to include transdermal drug delivery enhancement and management of various dermatological conditions. The controlled trauma induces the expression of matrix metalloproteinases and other key molecular mediators essential for skin remodeling.
