What's the safest way to clean a leather luggage tag?

Wipe surface dirt with a cloth that’s only slightly damp, never soaked, since leather absorbs water readily and can warp, crack or discolour if it gets genuinely wet rather than lightly wiped. Household cleaning products, including most all-purpose sprays, are too harsh for untreated or lightly treated leather and can strip natural oils from the material.

After cleaning, a small amount of leather conditioner, applied sparingly and buffed in with a soft cloth, helps keep the leather supple and prevents the cracking that dry, unconditioned leather develops over time — particularly relevant for a tag that’s exposed to weather while attached to checked luggage.

For genuinely stubborn dirt or a deep stain, a product specifically formulated for leather care is safer than experimenting with general household cleaners, which can cause damage that’s difficult or impossible to reverse on a natural material like leather.