FORMULATION AND THE RESPECTIVE PRESERVATION PROCESS OF ANIMAL AND VEGETABLE TISSUES, presented in liquid form and that has the particularity of having low basicity and a masking and complexing balanced system, where such characteristics grant to the product a high power of diffusion and distribution in the most internal regions of the hide structure, guaranteeing a fast transformation, and producing leathers with special properties, being able to be used in the processing of any type of hide, and being particularly indicated for bovine leathers of greater thickness (integral), where with the commonly used formulations a rather longer processing time is needed.