Triple K holster interior sheds

[Taurus 66]

Does someone have ideas how to treat the interior leather to a Triple K leather/imitation leather holster (not sure if it's genuine)? It sheds a lot and the small particles mixing with oils and heat over hundreds of shots could be somewhat to blame for past mechanical failures on the firing range (full seizure of the cylinder). This is my theory at least. Would hair spray be worth a try without having to worry about damaging the bluing, or do you know of another spray sealer? I want to be as inexpensive in fixing this as possible.

Thanks