This dressing shows its' conditioning potential on leather that's older than the 1970's. Note that once leather is cracked there is no way to fix the leather fibers. Cracking and flaking is due to loss of natural oils over time causing the leather fibers to shorten and stiffen. Oils in the Pecard Antique Leather Dressing return this essential requirement to the leather, allowing the fibers to perk up and prevent further damage. Pecard Antique Leather Dressing can also be applied to new oil tanned leather to repel harmful dirt and water. This specialty formulated blend of waxes includes beeswax, USP Grade Petroleum products and contains NO animal fat or tallow, mink oil, lanolin, or neatsfoot oil. May darken leather a shade but not significantly. Not recommended for Suede or NuBuck leather.