Background: Neck rejuvenation is an increasingly sought-after cosmetic procedure that offers a versatile solution to address various aging-related concerns in the neck area. Because it is non-surgical, it is an appealing choice for both patients and practitioners. This protocol introduces a highly effective approach utilizing ABO Botulinum Toxin A solution and NASHA gel 12 mg/mL for neck rejuvenation, targeting patients with muscle hypertonicity and skin degeneration.