Gelling agents form a three-dimensional network or matrix within the formulation, which traps water or other liquid components, thereby thickening the product. This network structure provides viscosity and consistency to the formulation, allowing it to stay in place on the skin while providing ease of application.
Typical gelling agents used in topical applications include: Carbomer Cellulose (hydroxyethyl) Natural Thickener(s) Polysaccharides Silacone(s)