What it is
A cannula is a fine, flexible tube used to deliver injectable treatments beneath the skin. In aesthetic dermatology, it serves as an alternative to sharp needles for procedures such as dermal fillers, biostimulators, or fat-dissolving injections.
How it is used in skin treatments
Unlike a traditional needle, which has a pointed tip and pierces tissue, a cannula has a rounded end that glides through the layers of skin via a small entry point. This reduces trauma, bruising, and swelling and allows for a smoother, more even distribution of product.
Skilled dermatologists use a cannula to treat larger areas like the cheeks, jawline, and temples, as well as delicate zones such as under the eyes. The technique enables precise placement of filler with fewer injection sites, lowering the risk of complications like vascular occlusion. For patients, this often means a more comfortable experience, minimal downtime, and natural-looking results that respect the contours of the face.
