Trichloroacetic acid is widely used in the medical field for skin treatments, particularly in chemical peels to remove warts, tattoos, and certain types of skin lesions. It acts as a caustic agent, effectively destroying unwanted tissue by denaturing proteins. In biochemistry and molecular biology, it is employed to precipitate macromolecules like proteins and DNA, aiding in their isolation and purification. Additionally, it serves as a fixative in histology for preserving tissue samples. In agriculture, it is utilized as a herbicide to control broadleaf weeds in crops. Its strong acidic properties also make it useful in analytical chemistry for various titrations and chemical analyses. In industry, it is used in the production of other chemicals and as a component in processes such as leather tanning and metal surface cleaning.