Kolajeni wa hydrolyzed ndi mtundu wazinthu zachilengedwe, zomwe zimakhala ndi mitundu yambiri yazinthu zofunikira pakapangidwe kazinthu zamunthu. Zimayengedwa kuchokera pakhungu lanyama. Ili ndi mawonekedwe ambiri. Monga surfactant, madzi posungira, guluu wolimba, film n'kupanga, emulsibility etc.