An injection apparatus for making an injection at a predetermined depth in skin comprises: a skin positioning member, an injection needle (610), and means guiding the injection needle for movement from a parking position above the skin beside said skin positioning member to slide beneath said skin positioning member to an injection position; wherein: the tip (620) of the injection needle is closer to the longitudinal axis of the shaft portion (650) than is the outside of the shaft portion (650) and/or the length of the lumen opening (625) of the needle is in a range from 5 to 15 times the diameter of the shaft (650) of the needle. An injection needle wherein the length of the lumen opening (625) of the needle is in a range from 5 to 15 times the diameter of the shaft (650) of the needle.