Efficacy and Safety of 2 Injection Techniques for Hand Biostimulatory Treatment With Diluted Calcium Hydroxylapatite.

Background: Calcium hydroxylapatite (CaHA) is effective for dorsal hand rejuvenation. Higher dilutions are used for biostimulation with fewer side effects.

Objective: To evaluate the efficacy and safety of 2 techniques of diluted CaHA injection for dorsal hand treatment.