What can you use to lighten Doc Martens Bombay inks?

To lighten Doc Martens Bombay inks, you can use a leather cleaner or conditioner that contains mild solvents, as these can help dilute the ink. Additionally, a mixture of water and vinegar may be effective, but always test it on a small, inconspicuous area first to avoid damage. For more significant lightening, consider using a specialized leather dye remover. Remember to follow up with a conditioner to keep the leather supple.