The Auto Finesse® Hide Leather Conditioner is based on a lanolin and wax enriched formula. and features two distinctly important functions. Hide Leather Conditioner's first function is too condition the hide by reintroducing essential oils. softening it. and restoring its original colour. Its second function is to act as a protective barrier cream. This creates a breathable layer that keeps the leather from drying out. and prevents dye-transfer on light coloured upholstery. Hide Leather Conditioner is suited to all finished. semi-aniline. and aniline (Sometimes also called 'Nappa'. uncoated. or natural.) leather finishes.