What is the smallest gauge needle that fat can be injected through?
Fillers and fat transfer to the face should be with a cannula. Smallest is 25 or 27 gauge.The art is in the injector not the instruments. How fat is harvested and prepared and then the pure fat injected artfully.
I use a sharp 23 gauge needle for injecting fat along the vermillion border of the lip for lip augmentation. Otherwise, for all other facial locations a blunt needle is preferred, usually an 18 gauge needle.
