Any good-sized shoe store (or western tack shop) should carry a product called "saddle soap", especially designed for cleaning leather. If there is some of the stain that it won't remove, it is written off as "patina", and becomes part of the "character" of the leather.
I don't know what bonded leather is but rubbing alchohol removes ink pen stains from leather furniture.
the oils are in the leather; a cleaner will remove dirt particles on the leather, but won't touch what is embedded in the leather. Try advleather.blogspot.com
No not entirely.
looks: black and white stitches round touch: hard smooth leather squeezable hear: squeak taste: ? smell: leather sweat grass stains
Leather should be sprayed with a protectant to prevent body oils from building up on leather. Body oil stains can be safely removed from leather by using a degreaser.
If the stain is fresh, then the stain can be removed by simply rubbing the stain with a damp cloth. Older stains can be removed with a leather cleaner from a brand like Pledge.
Sweat stains are tough to remove especially if you put deodorant on your shirt. However, these days there are a lot of good products available to remove these tough yellow stains. All you need to do is apply the gel directly onto the stain, wait 5 minutes and wash normally.
How can I remove black stains from a pocket book that went on my red bag? How can I remove black stains from a pocket book that went on my red bag?
bleach
There are a few ways to remove heat stains from leather. You can try massaging the leather with something like olive to redistribute the oil to help replenish the oil. You can also try a shoe repair place to get leather products. There are also some leather-safe pens that can be used to color those marks in.
Oils that are sitting on the surface can be removed with a detergent foam cleaner. Once the oils have penetrated the leather you would need to use a professional degreaser to remove the oil. The degreasing process extracts the oils into a very fine degreasing compound but there is a danger that it will also remove colour from the leather which would need replacing. If the stains are on ana niline style leather and cannot be cleaned out you may find that using aniline restoration products will help to dissipate the problem and make the stains look less obvious. Degreasing can be done on anilines but these are more likely to change colour in the process.
The best way to remove oil stains from leather is to use a smoothing iron and blotting paper.