Not The First Priority
The same oils that build up in your hair will also end up on your hairbrushes if you don’t clean them regularly. However, cleaning your hairbrushes is probably not the first thing on your to-do list. If you wait an excessive amount of time, the oil will become increasingly more viscous. You are just reintroducing all of that excess oil into your mane whenever you brush your tresses, so stop doing that!
Dish soap should be used to clean your brushes on a regular basis if you want to maintain the appearance that your hair is free of oil. To clean your dishes, all you need to do is fill your sink with hot water and a few squirts of dish soap. After allowing your brushes to soak for some time, remove them from the water and thoroughly clean them before using them again. The oil will have been removed, and the subsequent brushing of your hair will maintain its cleanliness.