A blunt-tip cannula is a small tube with an unsharp rounded end, specifically designed for atraumatic intradermal injections of fluids, for example injectable fillers. It has ports on the side allowing the product to be dispensed more evenly.

Microcannulas, on the other hand, are blunt and made of plastic. This makes them more flexible and less traumatic than standard needles.

Unlike needles, they can navigate through tissue easily without cutting or tearing blood vessels. This significantly decreases the risks of bleeding and bruising. By moving blood vessels out of the way instead of cutting through them the risk of injecting a filler directly into a blood vessel is virtually zero. From a single entry point microcannulas can deliver fillers precisely over an area which would require multiple needle punctures. Fewer injections means less pain, more comfort, and less risk of,syringe needle manufacturing