The blunt end is the whole product. Where a sharp needle tip cuts its way into tissue, a blunt-end injection needle advances through the plane it is pushed along and pushes structures aside instead of entering them. For filler placement along a fold or a jawline, that behavioural difference is the reason the instrument exists: it lowers the chance of the tip entering a vessel, and it lets the practitioner fan product across a plane from a single entry point rather than making a series of puncture tracks.
This category covers the blunt-end needles and microcannulas themselves, separate from the injection sets built around them. Sizes run from 18G rigid cannulas for high-viscosity volumizing through 22G–25G general-purpose work to 27G–30G fine microcannulas for thin tissue and superficial placement. Lengths run from 25 mm to 90 mm; hubs are supplied for the syringes used in aesthetic practice; tips are radiused and polished rather than merely rounded.
What separates a good blunt needle from a bad one is not visible in a photograph: it is how the tip behaves when it meets resistance, and how consistently that happens across the box. That is what this category is specified around.
Getting drag or coring with your current blunt needles? Tell us the product you inject, the plane and the syringe. We will recommend the tip geometry and gauge that passes the filler without dragging — and send a sample box so your injectors can compare feel directly.
The product decides the lumen; the plane decides the length:
| Type | Gauge | Length | Tip | Typical use |
|---|---|---|---|---|
| Rigid blunt cannula | 18G / 20G / 21G | 50 / 70 / 90 mm | Radiused, polished | High-viscosity volumizing, deep planes |
| Rigid blunt cannula | 22G | 50 / 70 mm | Radiused | Cheek, jawline, general volumizing |
| Flexible cannula | 23G / 25G | 25 / 38 / 50 mm | Radiused, flexible shaft | Perioral, mid-face, curved planes |
| Fine microcannula | 27G | 25 / 38 mm | Fine radiused | Thin dermis, tear trough |
| Ultra-fine microcannula | 30G | 25 mm | Ultra-fine radiused | Periorbital, skin boosters |
| Entry needle (paired) | 1–2 gauges larger | Matched to cannula | Sharp bevel | Entry puncture before cannula |
Note: gauge and length ranges shown are the configurations we produce most; tip geometry and hub type are confirmed per order.
Blunt needles fail in ways that are felt rather than measured, so the specification is about consistency:
Cheek volumizing with a moderate-to-high viscosity filler is usually performed with a 22G–25G cannula, or 18G–21G rigid cannulas where the product is highly cross-linked. The choice follows the filler specification first: the lumen has to pass the product with controllable force. Length is then set by the reach — 50 mm is common, 70 mm where the entry point must sit further from the treated area.
A sharp needle has an open, cutting bevel that penetrates tissue. A blunt-end needle has a closed, radiused tip, so it advances along tissue planes and pushes structures aside rather than cutting into them. In filler work this reduces the chance of the tip entering a vessel and allows product to be fanned across a plane from a single entry point. The trade-off is that it cannot make its own entry — a sharp needle one to two gauges larger is used for the puncture.
Drag usually means the tip radius is not polished finely enough for the plane being treated, or the cannula is being used in a tissue depth it was not designed for. Coring — drawing a core of tissue into the lumen — indicates a tip that is cutting rather than displacing. Both are tip-geometry issues rather than technique alone, and both are worth resolving with the supplier: we inspect tip form at batch level precisely because this is where dissatisfaction originates.
Both Luer-lock and Luer-slip hubs are available, with Luer-lock as the standard recommendation for filler work because it resists the pressure of extruding viscous product. Compatibility with the common 1 ml, 2 ml and 3 ml aesthetic syringes is verified. If your clinic uses a specific syringe brand, tell us and we will confirm the fit before you order a case.
Jawline and chin work usually needs a 50–70 mm cannula so the entry point can be placed away from the treated contour, often at the pre-auricular or buccal region. A shorter cannula forces the entry point into the treatment zone, which defeats the purpose of using a cannula. The 70 mm rigid cannula is the common choice for full jawline runs.
They can be. The entry needle is one to two gauges larger than the cannula so the puncture admits it without resistance, and supplying them as a matched pair removes a mismatch on the tray. If you prefer to buy entry needles separately, we will confirm the correct pairing for each cannula gauge.
Parent and related categories:
Medical Beauty Consumables ·
Disposable Anesthesia Needle ·
Disposable Tourniquet
OEM & manufacturing:
OEM Blunt Cannula Manufacturing ·
Low MOQ OEM ·
OEM & ODM Services
Regulatory guides for your market:
EU MDR Import Requirements ·
Mexico COFEPRIS Registration ·
All Regulatory Guides
Who we supply:
Aesthetics Clinics ·
Become a Distributor
Technical reading:
Blunt Cannula Injection Techniques ·
Needle Tip Geometry and Point Angles ·
Needle Tip Grinding ·
Lubricious Coatings on Needles
Need a Disposable Blunt End Injection Needle that passes your filler without drag?
Tell us the product you inject, the treatment plane and the syringe you use. We will recommend the gauge, length and tip geometry — and send a sample box so your injectors can judge the feel before you order.
Sample boxes are sent with a gauge recommendation for your specific product.
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