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Diagram of the Airgent handpiece used for subdermal minimal surgery. A needleless hypodermic inoculator delivers hyaluronic acid subdermally through a high pressure jet.
(Adapted with permission from Halachmi S, Ben Amitai D, Lapidoth M. Treatment of acne scars with hyaluronic acid: an improved approach. J Drugs Dermatol. 2013;12:e121—e123.)
