A clear or slightly opalescent, highly flammable, syrupy liquid compounded of pyroxylin, ether, and alcohol, which dries to a transparent, tenacious film; used as a topical protectant, applied to the skin to close small wounds, abrasions, and cuts, to hold surgical dressings in place, and to keep medications in contact with the skin.

Tannic acid in flexible collodion; an astringent and local hemostatic.