A 21G x 70mm MESO cannula is a specialized, long, and relatively thick, blunt-tipped aesthetic needle designed for precise, deep, and broad-coverage injectable treatments. It is used to minimize tissue damage, reduce bruising, and allow for the insertion of thick fillers or, in longer lengths, for body contouring.

Key Specifications & Features:

Gauge (21G): The 21-gauge indicates a relatively thick, rigid diameter, often used for thicker products like deep fillers or for greater structural support.

Length (70mm): A 70mm (roughly 2.75 inches) length allows for long, linear, or fan-shaped threading of fillers, reducing the need for multiple insertion points.

Blunt-Tip Design: Unlike sharp needles, the blunt tip reduces the risk of piercing blood vessels and nerves, significantly lowering bruising and swelling.

Side Opening/Port: A lateral opening on the side of the tip ensures the filler is delivered precisely and evenly, often indicated by a marker on the hub to show orientation.

Guide Needle: These are typically sold in a set with a slightly larger, sharper, shorter needle (e.g., a 20G or 21G sharp needle) to create the initial entry point in the skin.

Common Applications:

Dermal Fillers: Ideal for creating deep-plane volume in the cheeks, jawline, and chin.

Volumizing Procedures: Used for contouring and shaping facial areas.

Body Treatments: Due to their length, 70mm+ cannulas are often used for lipo-filling or subcision.