Questions for True North Wicked Clean All-Purpose Cleaner & Degreaser

It can be but it will dry out the leather. You would need to apply a conditioner to it after to keep the leather soft and from cracking. Here is a specific leather cleaner that will be more gentle on leather, https://www.sharptruck.com/automagic-vinyl-leather-cleaner-gallon-57-04 Also here is a leather conditioner to apply after cleaning, https://www.sharptruck.com/auto-magic-leather-conditioner-7. Everything can also be found in an easy kit here, https://www.sharptruck.com/leather-care-set