Mulberry tend to recommend Collonil Leather Gel for cleaning and protecting the leather. You can even buy it directly from Mulberry, though at £8 for 50ml, it is fairly expensive compared to £14.90 for 230ml. I will link to all items used in my video below.
Collonil Leather Gel, £14.90 for 230ml with free delivery
Collonil Waterstop Spray, £6.37 with free delivery
Collonil Suede Brush, £6 with free delivery
Shoe Brush Set, £1.51 with free delivery