Yes, the use of leather conditioner will be quite helpful for jackets. This is how conditioning restores leather fibers through adding moisture. It helps in improving texture to avoid damage like peeling or cracking when exposed to heat or sunlight. Another reason conditioner will be applied is the shine it adds to your leather jacket with leather hood and the lustrous finish on the fabric without darkening it. Besides this, it works as a water repellent; it forms a protective layer to help prevent water from causing damage. The best results that will last in durability and appearance can be attained by cleaning the jacket first with a mild cleaner and warm water, then letting it dry and applying this conditioner.