Observation on Cadavers and Through Ultrasonography Using a 2 mm Needle Length for Intradermal Injections

The study investigated the effectiveness of using a 2 mm, 34-gauge needle for intradermal injections, specifically for skin booster applications. Conducted on four cadavers and four live participants, the research demonstrated that a 30-degree injection angle allowed for precise placement within the dermal layer, as confirmed by ultrasonography. This method was found to be effective for delivering polynucleotide injections, which are used to enhance skin conditions. The study highlights the convenience and accuracy of using a 2 mm needle for intradermal injections, despite the challenges posed by the shallow depth and potential discomfort due to the high density of nerve endings in the dermal layer.