In Vitro Evaluation of the Effects of Multipoint Hyaluronic Acid‐Based Intradermal Fillers on Skin Quality Using a Novel <scp>3D</scp> Reconstructed Skin Aging Model

IPN-12.5 hydrogel significantly improved hydration and elasticity-related skin markers when compared to a similar product (HA-X12). Despite similar clinical indications and concentrations, the products exhibited different biological effects, potentially due to differences in cross-linking technologies or HA molecular weights. These factors are likely to influence clinical outcomes achieved with the two formulations.