you can buy the acetone from @Carrefour but i dont recommend using acetone, it is not even suited for the classical leather cleaning or as a stain remover. Simply wet a cloth in the alcohol cleaner and rub it onto the damaged area of leather. The alcohol cleaner will remove dirt, grease and grime from the surface of the leather. If the finish is weak it will also remove some colour. This process is required to prepare the leather for colouring.
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