A comprehensive range of hyaluronic acid forms and modified derivatives designed to deliver exceptional hydration, improve skin elasticity, and support the skin barrier. From high-molecular-weight film-forming agents to low-molecular-weight and hydrolyzed types for deep penetration, as well as crosslinked, acetylated, cationic, and silanized variations, these ingredients provide multifunctional benefits including anti-aging, anti-oxidation, and pollution defense for advanced skin and hair care formulations.