Needles for prefilled hyaluronic acid syringes: 26G, 27G or 30G?

Needles for prefilled hyaluronic acid syringes: 26G, 27G or 30G?

Every filler is supplied with needles, usually two. Which size is included depends on the firmness of the gel. This page explains what the number means, which needle belongs to which Singfiller variant and what to bear in mind when changing needles.

What the G number means

The G stands for gauge. The higher the number, the thinner the needle. The values are rounded outer diameters according to ISO 9626:

Why firmer gels need thicker needles

A firm gel with large particles can only be injected through a very thin needle with considerable pressure. The plunger is stiff and the flow becomes uneven. That is why manufacturers supply a 30G needle with soft gels and a 26G or 25G with firm ones. If two sizes are included, the thinner one is intended for precise work and the thicker one for easier injection.

Which needle for which Singfiller variant

Each pack also contains patient labels for documentation and the instructions for use.

Needle or blunt microcannula?

In everyday practice, “needle” means the sharp needle supplied with the syringe. Blunt microcannulas are a separate product. They are inserted through an entry point and used mainly for larger areas. As a rule, they are not supplied with prefilled syringes and must match the viscosity: firm gels such as V4 require a larger inner diameter than V1.

Points to note when changing needles

• Use only sterile, individually packed needles and screw them firmly onto the Luer lock connector.
• Before use, check that the gel flows out evenly.
• The needle size and the batch number belong in the treatment record; the labels from the pack help with this.

Which line from other manufacturers matches which Singfiller level is shown in the filler comparison.

Who may order

Fillers at Intraa are intended for doctors and Heilpraktiker (state-licensed non-medical practitioners in Germany). Only these two professional groups are permitted to administer them.