White leather may be considered luxurious, but unless it's kept clean it won’t look so luxurious. White upholstery of all types, including leather, naturally shows dirt very easily. This means you must be extra vigilant about keeping white leather chairs clean. Retailers sell commercial cleaners for leather upholstery, but you can also make your own leather cleaner at home.
Dust off the white chairs with dry white cloths and check the chairs for stains. Treat stains first: apply white toothpaste to a wet toothbrush, as suggested by Mrs. Clean USA., and scrub gently over the stains. Rinse off the toothpaste with a wet cloth.
Create your own leather upholstery cleaner. "Good Housekeeping" offers the following easy recipe: mix 1 part white vinegar to 2 parts linseed oil. In other words, if you use 1 cup of white vinegar then add 2 cups of clear-coloured linseed oil. Place it in a bottle and shake to mix.
Put on rubber gloves. Saturate a white cloth in the linseed and vinegar mixture. Test this on a discreet part of the chair to make sure it does not discolour the leather. If it does, stop now and don't use this; try a commercial leather cleaner instead.
Work the homemade mixture or leather cleaner into the white leather, using wide circular motions to provide even coverage.
Allow the cleaner time to soak into the leather. "Good Housekeeping" recommends waiting 10 minutes.
Use a dry cloth to buff the leather and remove excess cleaner. When the cloth is damp or soiled, switch to another dry cloth. Keep buffing the chair until the cloth picks up no more cleaner residue.