Category: Post Format


From innovative textures to energy saving


Seppic’s GeltrapTM gel-in-oil and cream-gel technologies produce cold emulsions and save energy used when making formulations, while providing innovative textures and multiple sensory experiences. Seppic has pioneered these technologies in the cosmetics sector.

GeltrapTM gel-in-oil

Geltrap™ is a technology for producing gel-in-oil emulsions composed of a high internal gelled water phase thickened by a polymer, and a low external oily phase stabilized by a liquid xylolipidic emulsifying system.

A Geltrap™ emulsion is produced in a simple cold process by mixing the gelled phase, and the oily phase containing the emulsifier, using low or high shear equipment. Gel droplets, fragmented during mechanical agitation, are stabilized in the oily phase.


A technology to support formulators


Thickening polymers are among the most-used ingredients in formulations. Because of their ability to govern rheological behavior, they are essential ingredients for controlling usage performance and ensuring users have a positive perception of the products.

At Seppic, we use two main polymerization technologies: inverse emulsion polymerization and precipitation polymerization.

Inverse emulsion polymerization

Inverse emulsion polymerization is an effective manufacturing technology for producing high-performance liquid thickeners. Pre-neutralized and ready to use, these polymers can be used cold during the formulation of end products.

Inverse emulsion polymerization technology

Inverse emulsion polymerization technology is a process of radical polymerization which consists of polymerizing ethylenic and hydrophilic monomers, which are soluble in water droplets, dispersed in an oily phase and stabilized by a low HLB (hydro lipid balance) emulsifier system.

This technology leads to the formation of high molecular weight polymers trapped in water droplets dispersed in a water-in-oil emulsion. Depending on the targeted properties, the structure of the polymer can be adapted through the choice of the monomers and the crosslinking system.

Inverse emulsion polymerization technology